stupid

adj

1. dull-witted, Inf. dumb, unintelligent, fatuitous, insensate, Brit. Inf. gormless; empty-headed, brainless, mindless, Rare. insulse; dull, Sl. lamebrained, slow, Inf. dopey, Inf. dill, oxlike; unthinking, unreasoning, incogitant; dim-witted, slow-witted, halfwitted, fat-witted, thick-witted, beef-witted, witless, unwitty; imbecilic, Inf. moronic, retarded, subnormal, deficient; dense, thick, duncish, obtuse, bovine, Inf. cretinous, stolid, Boeotian; lumpish, oafish, cloddish, boorish, blunt, crass, tactless; addlepated, addlebrained, addleheaded, muddled, muddleheaded; doltish, blockish, asslike, blockheaded, dunderheaded, noodle-headed; boneheaded, wooden-headed, thickheaded, thick-skulled; obstinate, stubborn, intractable, mulish, bullish, bullheaded, obdurate, unyielding, unbending.

2. simple-minded, simple, bird-brained, weak-minded, weak-headed, feeble-minded; harebrained, light-minded, light-headed, giddy, mercurial; absent-minded, scatterbrained, confused, bemused; featherheaded, featherbrained, rattleheaded, rattlebrained; childish, puerile, immature; naive, simple, unsophisticated, gullible, green.

3. foolish, silly, absurd, inane, Sl. cuckoo, fatuous; pointless, futile, profitless, fruitless; senseless, nonsensical, Inf. damfool, crackbrained, Scot. doiled, Sl. cockeyed, Scot, and North Eng. glaikit; ridiculous, laughable, risible, derisible, ludicrous, Sl. for the birds; asinine, anserine, idiotic, idiotical; frivolous, frothy, superficial, undiscriminating.

4. unreasonable, irrational, illogical, meaningless; preposterous, extravagant, excessive; unrealistic, half-baked; haphazard, aimless, driftless, unconnected, groundless; irrelevant, inconsequential, purposeless; inappropriate, inept, improper, incongruous, inconsistent; imprudent, indiscreet; unwise, ill-considered, ill-suited, ill-advised, injudicious; heedless, unheeding, short-sighted, careless, unwary; foolhardy, reckless, irresponsible, rash, harum-scarum.

5. vapid, insipid, Brit. Dial. wearish, banal, bland, tame; prosaic, humdrum, unimaginative, uninteresting, ordinary, commonplace; tedious, boring, monotonous, wearing, tiring, tiresome; empty, void, vacuous, blank, unoccupied.

6. stupefied, numb, benumbed; comatose, insensible, impassive, unconscious, semiconscious; inanimate, insensate; stunned, dazed, dazzled, in a daze, knocked silly; spiritless, lifeless, inert, torpid, lethargic; sluggish, groggy, drugged, punchy; soporific, slumberous, somnolent; lazy, lackadaisical, faineant.

n

7.Informal. imbecile, mooncalf, Inf. moron; fool, saphead, Simple Simon, noodle, Inf. jay, Sl. jerk, goose; simpleton, nincompoop, silly billy, driveler; dimwit, nitwit, half-wit, featherbrain; scatter-brain, rattlehead, rattlepate, rattlebrain; dope, booby, Sl. lamebrain, Inf. dummy, Sl. dumb-bell, Sl. dumbhead; dolt, Inf. cretin, dunce, clod, oaf; ignoramus, know-nothing, lowbrow, illiterate