1. (noun) open, clear
a clear or unobstructed space or expanse of land or water
Synonyms: open air, out-of-doors, clear, open, surface, outdoors
Antonyms: drawn, unopen, disingenuous, blocked, settled, fine, insusceptible, shut, enclosed, obstructed, closed, stoppered, squinting, squinched, nonopening, inactive, compressed, constricted, unsusceptible, out of use(p), private, unavailable, invulnerable, blinking, union, protected, winking, sealed, artful, tight, restricted, close, fold, close down, close up, shut down
2. (noun) outdoors, out-of-doors, open air, open
where the air is unconfined
Synonyms: open air, surface, out-of-doors, clear, open, outdoors
Antonyms: shut, squinched, unopen, insusceptible, protected, invulnerable, fine, closed, settled, sealed, artful, drawn, enclosed, union, disingenuous, private, tight, winking, blocked, blinking, inactive, out of use(p), obstructed, nonopening, unsusceptible, constricted, squinting, compressed, unavailable, stoppered, restricted, close, close up, fold, shut down, close down
3. (noun) open
a tournament in which both professionals and amateurs may play
Synonyms: open air, out-of-doors, clear, surface, outdoors
Antonyms: unopen, settled, blocked, artful, restricted, enclosed, shut, invulnerable, tight, blinking, unavailable, closed, union, unsusceptible, private, protected, sealed, constricted, stoppered, fine, drawn, insusceptible, nonopening, squinting, disingenuous, compressed, inactive, obstructed, squinched, winking, out of use(p), close, close up, fold, close down, shut down
4. (adj) open, surface
information that has become public
Synonyms: aerofoil, open, out-of-doors, surface, outdoors, control surface, airfoil, clear, open air
Antonyms: protected, stoppered, closed, disingenuous, drawn, insusceptible, sealed, unsusceptible, union, blinking, settled, invulnerable, nonopening, fine, compressed, enclosed, obstructed, shut, inactive, tight, unavailable, winking, blocked, squinched, out of use(p), private, unopen, squinting, restricted, constricted, artful, close, close up, fold, shut down, close down
5. (adj) open, unfastened
affording unobstructed entrance and exit; not shut or closed
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, open, candid, undecided, loose, untied, unfastened, capable, assailable, unbuttoned, unresolved, receptive, undetermined, opened
Antonyms: enclosed, inactive, shut, unsusceptible, closed, obstructed, protected, compressed, blocked, stoppered, insusceptible, drawn, tight, fine, nonopening, settled, squinched, unavailable, squinting, unopen, blinking, disingenuous, out of use(p), invulnerable, private, union, sealed, restricted, constricted, artful, winking, close, fold, close down, shut down, close up
6. (adj) open
affording free passage or access
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: closed, obstructed, nonopening, sealed, insusceptible, artful, unsusceptible, protected, settled, constricted, blocked, squinched, unavailable, invulnerable, tight, inactive, drawn, shut, enclosed, out of use(p), restricted, union, winking, fine, stoppered, compressed, disingenuous, private, squinting, blinking, unopen, close, fold, close up, close down, shut down
7. (adj) exposed, open
with no protection or shield
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, open, candid, undecided, uncovered, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: disingenuous, stoppered, closed, union, constricted, tight, settled, unavailable, compressed, blocked, private, unsusceptible, winking, shut, obstructed, protected, insusceptible, artful, nonopening, unopen, inactive, fine, blinking, drawn, sealed, out of use(p), enclosed, squinting, squinched, invulnerable, restricted, close, close down, fold, shut down, close up
8. (adj) open
open to or in view of all
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: unopen, blinking, stoppered, union, protected, shut, disingenuous, settled, closed, unsusceptible, constricted, invulnerable, nonopening, drawn, insusceptible, sealed, fine, artful, squinting, enclosed, tight, out of use(p), winking, obstructed, compressed, blocked, restricted, unavailable, inactive, private, squinched, close, close up, shut down, close down, fold
9. (adj) open, opened
used of mouth or eyes
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, open, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: inactive, private, stoppered, shut, squinched, unopen, winking, sealed, closed, fine, blinking, obstructed, insusceptible, drawn, artful, settled, tight, blocked, protected, constricted, invulnerable, enclosed, unavailable, out of use(p), disingenuous, unsusceptible, restricted, compressed, squinting, union, nonopening, close up, close, fold, close down, shut down
10. (adj) open
not having been filled
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: squinched, artful, disingenuous, protected, nonopening, inactive, fine, shut, enclosed, drawn, constricted, closed, unavailable, stoppered, union, insusceptible, settled, blocked, private, unopen, out of use(p), winking, sealed, compressed, obstructed, squinting, blinking, invulnerable, restricted, unsusceptible, tight, close down, close up, close, shut down, fold
11. (adj) open
accessible to all
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: invulnerable, blocked, compressed, drawn, closed, settled, squinting, sealed, shut, stoppered, inactive, protected, winking, tight, unopen, union, private, blinking, nonopening, out of use(p), enclosed, unsusceptible, obstructed, disingenuous, fine, unavailable, constricted, insusceptible, squinched, restricted, artful, close, close up, close down, fold, shut down
12. (adj) assailable, undefendable, undefended, open
not defended or capable of being defended
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, open, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: closed, inactive, insusceptible, unsusceptible, stoppered, sealed, restricted, artful, compressed, drawn, blocked, winking, constricted, obstructed, squinting, disingenuous, enclosed, unavailable, tight, union, shut, invulnerable, out of use(p), fine, private, settled, blinking, squinched, nonopening, unopen, protected, close up, shut down, close, close down, fold
13. (adj) loose, open
(of textures) full of small openings or gaps
Synonyms: undefended, undetermined, sluttish, wanton, receptive, unresolved, assailable, at large(p), free, heart-to-heart, undecided, subject, promiscuous, undefendable, liberal, opened, exposed, unaffixed, open, clear, slack, idle, unfastened, on the loose(p), easy, overt, candid, open(a), capable, informal, light, escaped, lax, loose
Antonyms: squinting, unavailable, tight, closed, squinched, protected, restricted, sealed, obstructed, drawn, shut, insusceptible, disingenuous, blocked, fine, unsusceptible, compressed, union, artful, constricted, enclosed, out of use(p), inactive, unopen, settled, invulnerable, nonopening, stoppered, blinking, winking, private, close, shut down, fold, close up, close down
14. (adj) open
having no protecting cover or enclosure
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: drawn, squinched, compressed, out of use(p), private, restricted, disingenuous, closed, shut, constricted, protected, squinting, union, insusceptible, artful, obstructed, winking, settled, stoppered, sealed, inactive, tight, nonopening, fine, blinking, blocked, invulnerable, enclosed, unavailable, unopen, unsusceptible, fold, close, close up, close down, shut down
15. (adj) open
(set theory) of an interval that contains neither of its endpoints
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: shut, insusceptible, winking, union, blocked, closed, squinting, squinched, blinking, private, artful, unopen, restricted, disingenuous, invulnerable, constricted, compressed, protected, out of use(p), fine, unavailable, unsusceptible, stoppered, enclosed, tight, inactive, sealed, drawn, obstructed, settled, nonopening, close, fold, close up, shut down, close down
16. (adj) open, undecided, undetermined, unresolved
not brought to a conclusion; subject to further thought
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, dissonant, clear, open, candid, undecided, on the fence(p), loose, indeterminate, unfastened, capable, assailable, unresolved, receptive, undetermined, unsolved, opened
Antonyms: disingenuous, settled, blinking, nonopening, compressed, closed, private, squinched, unopen, constricted, squinting, fine, unsusceptible, artful, obstructed, blocked, union, protected, winking, tight, stoppered, restricted, sealed, enclosed, drawn, out of use(p), inactive, shut, invulnerable, insusceptible, unavailable, fold, close, close up, shut down, close down
17. (adj) open, opened
not sealed or having been unsealed
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, open, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: insusceptible, closed, inactive, drawn, winking, invulnerable, sealed, enclosed, restricted, settled, constricted, unopen, tight, artful, unsusceptible, private, nonopening, disingenuous, stoppered, compressed, fine, squinched, squinting, shut, out of use(p), protected, blinking, union, blocked, unavailable, obstructed, close, close up, shut down, fold, close down
18. (adj) open
without undue constriction as from e.g. tenseness or inhibition
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: out of use(p), tight, shut, blocked, obstructed, unavailable, inactive, closed, settled, sealed, blinking, artful, unsusceptible, protected, insusceptible, restricted, winking, fine, stoppered, drawn, enclosed, constricted, unopen, squinting, disingenuous, union, nonopening, compressed, squinched, invulnerable, private, close, close down, fold, shut down, close up
19. (adj) receptive, open
ready or willing to receive favorably
Synonyms: overt, sensory(a), exposed, heart-to-heart, undefendable, centripetal, undefended, subject, clear, open, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, open(a), opened
Antonyms: shut, unavailable, stoppered, closed, private, insusceptible, union, settled, unopen, squinched, unsusceptible, blocked, inactive, out of use(p), tight, invulnerable, restricted, constricted, compressed, blinking, fine, disingenuous, enclosed, drawn, sealed, winking, nonopening, obstructed, protected, squinting, artful, shut down, close, close down, close up, fold
20. (adj) overt, open
open and observable; not secret or hidden
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, open, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: blinking, insusceptible, settled, winking, drawn, constricted, closed, unopen, disingenuous, compressed, tight, enclosed, shut, out of use(p), stoppered, artful, squinched, fine, private, invulnerable, unavailable, sealed, union, protected, restricted, obstructed, nonopening, inactive, unsusceptible, blocked, squinting, close, shut down, close up, close down, fold
21. (adj) open(a)
not requiring union membership
Antonyms: closed, invulnerable, unsusceptible, shut, compressed, blocked, private, union, squinched, unopen, settled, inactive, nonopening, drawn, fine, stoppered, squinting, obstructed, insusceptible, disingenuous, restricted, blinking, unavailable, artful, winking, sealed, constricted, enclosed, out of use(p), protected, tight, close up, close, shut down, fold, close down
22. (adj) capable, open, subject
possibly accepting or permitting
Synonyms: overt, unfastened, receptive, heart-to-heart, undefendable, open(a), undefended, subject, exposed, dependent, clear, open, candid, undecided, up to(p), loose, capable, assailable, unresolved, equal to(p), undetermined, able, adequate to(p), opened
Antonyms: squinting, closed, blinking, enclosed, invulnerable, artful, insusceptible, restricted, squinched, compressed, disingenuous, fine, obstructed, blocked, unopen, unsusceptible, shut, out of use(p), sealed, inactive, unavailable, settled, private, constricted, winking, nonopening, union, protected, stoppered, drawn, tight, fold, close down, shut down, close, close up
23. (adj) clear, open
affording free passage or view
Synonyms: undefended, undetermined, well-defined, receptive, unresolved, assailable, undefendable, exculpated, vindicated, exposed, clean-cut, heart-to-heart, exonerated, clear(p), subject, open(a), opened, unclouded, percipient, clean, readable, open, absolved, clear, undecided, unfastened, overt, candid, clear-cut, unmortgaged, capable, decipherable, cleared, light, loose
Antonyms: nonopening, squinting, restricted, out of use(p), settled, inactive, constricted, shut, blocked, unsusceptible, artful, closed, blinking, union, tight, unavailable, obstructed, protected, disingenuous, winking, stoppered, drawn, insusceptible, unopen, enclosed, private, compressed, fine, squinched, sealed, invulnerable, shut down, close down, close, fold, close up
24. (adj) candid, open, heart-to-heart
openly straightforward and direct without reserve or secretiveness
Synonyms: overt, exposed, assailable, straight-from-the-shoulder, heart-to-heart, undefendable, open(a), frank, undetermined, plainspoken, unresolved, clear, open, candid, undecided, free-spoken, loose, outspoken, capable, point-blank, blunt, unfastened, receptive, undefended, subject, opened, forthright
Antonyms: invulnerable, stoppered, closed, disingenuous, tight, artful, union, unsusceptible, compressed, blinking, constricted, sealed, drawn, shut, settled, squinting, obstructed, fine, unopen, protected, inactive, enclosed, insusceptible, winking, nonopening, unavailable, blocked, private, out of use(p), squinched, restricted, close down, close, shut down, close up, fold
25. (verb) open
ready for business
Synonyms: overt, exposed, heart-to-heart, undefendable, open(a), undefended, subject, clear, candid, undecided, loose, unfastened, capable, assailable, unresolved, receptive, undetermined, opened
Antonyms: unavailable, sealed, disingenuous, blinking, protected, stoppered, closed, blocked, squinting, unopen, tight, squinched, out of use(p), fine, constricted, inactive, restricted, private, union, obstructed, nonopening, shut, unsusceptible, insusceptible, settled, winking, artful, enclosed, compressed, drawn, invulnerable, close, close down, fold, close up, shut down
26. (verb) open, open up
cause to open or to become open
Synonyms: give, open, pioneer, open up, afford, spread, spread out, unfold
Antonyms: squinched, private, protected, nonopening, stoppered, closed, drawn, insusceptible, blocked, shut, restricted, winking, constricted, compressed, artful, tight, out of use(p), obstructed, sealed, invulnerable, inactive, unsusceptible, unopen, settled, fine, squinting, unavailable, union, disingenuous, enclosed, blinking, close, fold, close down, close up, shut down
27. (verb) open, open up
start to operate or function or cause to start operating or functioning
Synonyms: give, open, pioneer, open up, afford, spread, spread out, unfold
Antonyms: tight, blinking, shut, inactive, compressed, union, private, restricted, disingenuous, fine, obstructed, settled, winking, unsusceptible, closed, sealed, protected, blocked, squinched, drawn, artful, unopen, squinting, insusceptible, stoppered, nonopening, unavailable, enclosed, out of use(p), invulnerable, constricted, close, fold, close down, close up, shut down
28. (verb) open, open up
become open
Synonyms: give, open, pioneer, open up, afford, spread, spread out, unfold
Antonyms: fine, protected, constricted, blocked, inactive, artful, invulnerable, tight, union, shut, closed, settled, private, insusceptible, restricted, out of use(p), obstructed, stoppered, sealed, compressed, squinched, blinking, squinting, enclosed, nonopening, drawn, unopen, unavailable, winking, unsusceptible, disingenuous, close, close up, fold, close down, shut down
29. (verb) open
begin or set in action, of meetings, speeches, recitals, etc.
Synonyms: unfold, open up, spread out, give, afford, spread
Antonyms: unopen, closed, squinched, settled, disingenuous, shut, restricted, drawn, private, union, fine, inactive, enclosed, winking, sealed, unavailable, unsusceptible, obstructed, nonopening, stoppered, blinking, out of use(p), blocked, compressed, squinting, protected, constricted, insusceptible, invulnerable, artful, tight, close, close down, close up, shut down, fold
30. (verb) unfold, spread, spread out, open
spread out or open from a closed or folded state
Synonyms: fan out, blossom out, unfold, circularise, dissipate, open up, overspread, disseminate, pass around, spread, spread out, broadcast, afford, turn out, open, stretch, blossom, give, stretch out, extend, scatter, circularize, expand, splay, go around, propagate, blossom forth, rotate, circulate, disperse, distribute, string out, diffuse
Antonyms: invulnerable, restricted, private, insusceptible, closed, stoppered, sealed, shut, blinking, nonopening, union, enclosed, unsusceptible, inactive, tight, constricted, obstructed, compressed, out of use(p), squinched, blocked, disingenuous, fine, unopen, unavailable, artful, protected, winking, drawn, settled, squinting, close, close up, shut down, close down, fold
31. (verb) open, open up
make available
Synonyms: give, open, pioneer, open up, afford, spread, spread out, unfold
Antonyms: disingenuous, invulnerable, settled, tight, out of use(p), protected, squinting, blinking, artful, squinched, private, inactive, sealed, unsusceptible, closed, winking, fine, shut, constricted, unopen, nonopening, blocked, stoppered, drawn, insusceptible, obstructed, unavailable, compressed, union, restricted, enclosed, close, close up, shut down, close down, fold
32. (verb) open, open up
become available
Synonyms: give, open, pioneer, open up, afford, spread, spread out, unfold
Antonyms: blocked, compressed, closed, unsusceptible, artful, winking, nonopening, sealed, protected, insusceptible, squinting, fine, tight, enclosed, drawn, blinking, obstructed, shut, settled, disingenuous, union, private, out of use(p), restricted, unavailable, stoppered, constricted, squinched, inactive, invulnerable, unopen, close down, close, shut down, close up, fold
33. (verb) open
have an opening or passage or outlet
Synonyms: unfold, open up, spread out, give, afford, spread
Antonyms: closed, unavailable, blocked, squinched, settled, compressed, protected, restricted, stoppered, private, sealed, obstructed, enclosed, tight, inactive, winking, shut, fine, blinking, artful, unsusceptible, union, constricted, invulnerable, unopen, insusceptible, drawn, disingenuous, squinting, out of use(p), nonopening, close, shut down, close up, fold, close down
34. (verb) open
make the opening move
Synonyms: unfold, open up, spread out, give, afford, spread
Antonyms: compressed, invulnerable, enclosed, squinched, obstructed, shut, constricted, artful, fine, unavailable, blocked, restricted, drawn, squinting, out of use(p), nonopening, closed, winking, disingenuous, private, blinking, union, insusceptible, tight, protected, unopen, unsusceptible, stoppered, settled, sealed, inactive, fold, close, shut down, close up, close down
35. (verb) afford, open, give
afford access to
Synonyms: commit, chip in, dedicate, cave in, collapse, spread, impart, spread out, move over, return, establish, reach, present, have, fall in, make, pay, unfold, grant, throw, gift, kick in, feed, break, pass on, ease up, apply, give, open up, open, founder, devote, hold, pass, render, sacrifice, yield, turn over, leave, give way, consecrate, generate, contribute, afford, hand
Antonyms: closed, settled, nonopening, inactive, squinting, obstructed, drawn, invulnerable, sealed, shut, out of use(p), fine, unavailable, disingenuous, protected, private, unopen, unsusceptible, compressed, winking, artful, squinched, insusceptible, restricted, blinking, tight, stoppered, enclosed, union, blocked, constricted, close, shut down, close down, fold, close up
36. (verb) open
display the contents of a file or start an application as on a computer
Synonyms: unfold, open up, spread out, give, afford, spread
Antonyms: union, protected, inactive, unsusceptible, blinking, artful, closed, constricted, restricted, winking, settled, private, sealed, insusceptible, shut, nonopening, compressed, squinting, unopen, tight, blocked, squinched, disingenuous, out of use(p), stoppered, unavailable, fine, invulnerable, drawn, obstructed, enclosed, close, close down, fold, shut down, close up
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Synonyms and Antonyms of open 
