Harebrained — Meaning, Definition & Synonyms

Harebrained (adjective) — Senses, Synonyms & Antonyms

1. lacking in seriousness or maturity

   "the movie follows the harebrained antics of a pair of stoners who seem incapable of growing up"

   similar: birdbrained, ditzy, dizzy, featherbrained, flighty, frivolous, frothy, futile, giddy, goofy, light-headed, light-minded, puerile, scatterbrained, scatty (chiefly British, informal), silly, yeasty
   related: fatuous, foolish, inane, nonsensical, thoughtless, witless, crazy, daffy, daft, fruity, exuberant, flippant, fluttery, giggly, happy, light, lighthearted, playful, sappy, shallow, superficial
   opposite: earnest, serious, serious-minded, sober, unfrivolous
   near: grave, melancholy, somber, thoughtful, dignified, heavy, no-nonsense, sedate, severe, solemn, staid

2. showing or marked by a lack of good sense or judgment

   "a harebrained idea to go for a hike in an area where grizzly bear attacks had recently been reported"

   similar: absurd, asinine, balmy, barmy (chiefly British), batty, brainless, bubbleheaded, cockeyed, crackbrained, crackpot, crazy, cuckoo, daffy, daft, dippy, dotty, fatuous, featherheaded, fool, foolish, fruity (slang), gaga, half-baked, half-witted, inept, insane, jerky, kooky, loony, loony tunes, lunatic (informal), lunkheaded, mad, meshuga, nonsensical, nutty, preposterous, sappy, screwball, senseless, silly, simpleminded, stupid, tomfool, unwise, wacko, wacky, weak-minded, witless, zany, out to lunch
   related: airheaded, birdbrained, boobish, brain-dead, chowderheaded, chuckleheaded, clueless, dense, dim, dim-witted, doltish, dopey, dorky (slang), dull, dumb, dunderheaded, empty-headed, feebleminded, gormless (chiefly British), idiotic, imbecile, knuckleheaded, lamebrain, mindless, moronic, oafish, obtuse, opaque, pinheaded, simple, slow, slow-witted, soft, softheaded, thoughtless, thick, thickheaded, unintelligent, vacuous, fallacious, illogical, invalid, irrational, nonrational, surd, unreasonable, unreasoning, unsound, weak, farcical, laughable, ludicrous, ridiculous, notional, buffoonish, clownish, ill-advised, unconsidered, unreasoned
   opposite: judicious, prudent, sagacious, sage, sane, sapient, sensible, sound, wise
   near: brainy, bright, clever, intelligent, smart, logical, rational, reasonable, valid, well-advised