Obtuse

a.	1.	Not pointed or acute; blunt; - applied esp. to angles greater than a right angle, or containing more than ninety degrees.
	2.	Not having acute sensibility or perceptions; not alert, especially to the feelings of others; dull; stupid; as, obtuse senses.
	3.	Dull; deadened; as, obtuse sound.

Adj.	1.	obtuse - of an angle; between 90 and 180 degrees Antonyms: acute - of an angle; less than 90 degrees
	2.	obtuse - of a leaf shape; rounded at the apex
	3.	obtuse - lacking in insight or discernment; "too obtuse to grasp the implications of his behavior"; "a purblind oligarchy that flatly refused to see that history was condemning it to the dustbin"- Jasper Griffin Synonyms: purblind
	4.	obtuse - slow to learn or understand; lacking intellectual acuity; "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students" Synonyms: dumb, slow, dense, dim, dull

abrupt, affectless, anesthetized, arctic, asleep, autistic, benumbed, bluff, blunt-edged, blunt-ended, blunt-pointed, blunt-witted, blunted, bluntish, boneheaded, callous, catatonic, chill, chilly, cloddish, cold, cold as charity, cold-blooded, coldhearted, cool, dead, deadened, dim, dim-witted, dispassionate, doltish, dopey, drugged, dull of mind, dull-edged, dull-headed, dull-pated, dull-pointed, dull-witted, dulled, dullish, edgeless, emotionally dead, emotionless, faired, fat-witted, frigid, frosted, frosty, frozen, gross-headed, heartless, heavy, hebetudinous, icy, immovable, impassible, impassive, imperceptive, impercipient, inexcitable, insensate, insensible, insensitive, insentient, insusceptible, loutish, lumpish, mentally retarded, nonemotional, numb, numbed, oafish, obdurate, objective, out of touch, passionless, pointless, rounded, self-absorbed, simple, slow, sluggish, smoothed, soulless, spiritless, stolid, thick, thick-brained, thick-headed, thick-pated, thick-skinned, thick-witted, thickheaded, thickskulled, unaffectionate, unedged, unemotional, unfeeling, unfelt, unimpassioned, unimpressionable, unloving, unpassionate, unperceptive, unpointed, unresponding, unresponsive, unsharp, unsusceptible, unsympathetic, untouchable, wooden