foolish

1 showing or marked by a lack of good sense or judgment foolish people who thought that the world would end in the year 2000 a foolish scheme that was supposed to make us all rich Synonyms of foolish absurd, asinine, balmy, brainless, bubbleheaded, cockeyed, crackpot, crazy, cuckoo, daffy, daft, dippy, dotty, fatuous, featherheaded, fool, half-baked, harebrained, half-witted, inept, insane, jerky, kooky (also kookie), loony (also looney), lunatic, lunkheaded, mad, nonsensical, nutty, preposterous, sappy, screwball, senseless, silly, simpleminded, stupid, tomfool, unwise, wacky (also whacky), weak-minded, witless, zany Words Related to foolish airheaded, birdbrained, boobish, brain-dead, chowderheaded, chuckleheaded, clueless, dense, dim, dim-witted, doltish, dopey (also dopy), dorky [slang], dull, dumb, dunderheaded, empty-headed, fatuous, feebleminded, gormless [chiefly British], idiotic (also idiotical), imbecile (or imbecilic), knuckleheaded, lamebrain (or lamebrained), mindless, moronic, oafish, obtuse, opaque, pinheaded, simple, slow, slow-witted, soft, softheaded, thoughtless, thick, thickheaded, unintelligent, vacuous, witless; fallacious, illogical, invalid, irrational, nonrational, surd, unreasonable, unreasoning, unsound, weak; farcical, laughable, ludicrous, ridiculous; notional; buffoonish, clownish; ill-advised, unconsidered, unreasoned Phrases out to lunch Near Antonyms of foolish brainy, bright, clever, intelligent, smart; logical, rational, reasonable, valid; well-advised Antonyms of foolish judicious, prudent, sagacious, sage, sane, sapient, sensible, sound, wise

2 conceived or made without regard for reason or reality foolish attempts to construct a perpetual motion machine Synonyms of foolish absurd, bizarre, crazy, fanciful, fantastic, insane, nonsensical, preposterous, unreal, wildWords Related to foolish implausible, inconceivable, incredible, unbelievable, unimaginable, unthinkable; extravagant, grotesque; bizarro, curious, eccentric, far-out, funny, kinky, kooky (also kookie), odd, outlandish, out-of-the-way, outré, peculiar, quaint, queer, queerish, quirky, screwy, strange, wacky (also whacky), way-out, weird; farcical, laughable, ludicrous, ridiculous; Alice-in-Wonderland, Kafkaesque, nightmarish; dreamlike, surrealAntonyms of foolish realistic, reasonable

3 lacking importance the current regulations are cluttered with foolish details that are unnecessarily burdensome Synonyms of foolish fiddling, unimportant, frivolous, incidental, inconsequential, inconsiderable, insignificant, little, Mickey Mouse, minor, minute, negligible, nugatory, slight, small, small-fry, trifling, trivialWords Related to foolish jerkwater, one-horse; nickel-and-dime, paltry, petty, small-time, worthless; anonymous, nameless, obscure, uncelebrated, unknownNear Antonyms of foolish decisive, fatal, fateful; chief, dominant, overbearing, overmastering, overriding, principal; distinctive, exceptional, impressive, outstanding, prominent, remarkable; valuable, worthwhile, worthy; distinguished, eminent, great, illustrious, preeminent, prestigious; famous, notorious, renowned; all-important, basic, essential, fundamental, keyAntonyms of foolish big, consequential, eventful, important, major, material, meaningful, momentous, significant, substantial, unfrivolous, weighty