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
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
Synonyms, Thesaurus & Antonyms of 'open'
English Synonyms and Antonyms
1. open Bluff is a word of good meaning, as are frank and open. The bluff man talks and laughs loudly and freely, says and does whatever he pleases with fearless good nature, and with no thought of a Synonyms: bluff, abrupt, brusk, impolite, rough, blunt, coarse, inconsiderate, rude, blustering, discourteous, open, uncivil, bold, frank, plain-spoken, unmannerly Antonyms: bland, genial, polished, polite, refined, reserved, urbane, courteous
Synonyms for open 
