Synonyms and Antonyms of harebrained
- the movie follows the harebrained antics of a pair of stoners who seem incapable of growing up
birdbrained, ditzy (or ditsy), dizzy, featherbrained, flighty, frivolous, frothy, futile, giddy, goofy, light-headed, light-minded, puerile, scatterbrained, silly, yeasty
grave, melancholy, somber (or sombre), thoughtful
dignified, heavy, no-nonsense, sedate, severe, solemn, staid
- a harebrained idea to go for a hike in an area where grizzly bear attacks had recently been reported
absurd, asinine, balmy, brainless, bubbleheaded, cockeyed, crackpot, crazy, cuckoo, daffy, daft, dippy, dotty, fatuous, featherheaded, fool, foolish, half-baked, 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
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