1. (adj) obtuse
of an angle; between 90 and 180 degrees
Synonyms: dumb, dense, slow, dim, purblind, dull
Antonyms: compound, smart, acute, discerning
2. (adj) obtuse
(of a leaf shape) rounded at the apex
Synonyms: dumb, dense, slow, dim, purblind, dull
Antonyms: compound, smart, discerning, acute
3. (adj) obtuse, purblind
lacking in insight or discernment
Synonyms: visually impaired, purblind, sand-blind, dull, visually challenged, near-blind, dense, dim, dumb, obtuse, dim-sighted, slow
Antonyms: smart, discerning, acute, compound
4. (adj) dense, dim, dull, dumb, obtuse, slow
slow to learn or understand; lacking intellectual acuity
Synonyms: vague, ho-hum, muted, sluggish, subdued, deadening, faint, mute, slow, thudding, boring, dumb, dense, irksome, black, silent, wispy, heavy, dim, purblind, muffled, tedious, impenetrable, dull, dimmed, speechless, shadowy, tiresome, softened, bleak, thick, wearisome, obtuse, leaden
Antonyms: discerning, acute, smart, compound
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Synonyms and Antonyms of obtuse 
