featherhead

1 a person who lacks good sense or judgment she only seems like a featherhead; when you least expect it, she'll surprise you Synonyms berk [British], booby, charlie (also charley) [British], cuckoo, ding-a-ling, dingbat, ding-dong, dipstick, doofus [slang], fool, git [British], goose, half-wit, jackass, lunatic, mooncalf, nincompoop, ninny, ninnyhammer, nit [chiefly British], nitwit, nut, nutcase, simp, simpleton, turkey, yo-yoRelated Words daredevil; madman, madwoman; airhead, birdbrain, blockhead, cretin, dodo, dolt, donkey, dope, dork [slang], dumbbell, dummy, dunce, fathead, gander, goon, half-wit, idiot, ignoramus, imbecile, know-nothing, knucklehead, moron, numskull (or numbskull), pinhead, schlub (also shlub) [slang], schlump [slang], schnook [slang], stock; featherbrain, scatterbrain; butt, dupe, laughingstock, mockery, monkey; chump, loser, schlemiel (also shlemiel); character, codger, crackbrain, crackpot, crank, kook, oddball, screwball, weirdoNear Antonyms sage, thinker; brain, genius

2 a silly flighty person too important a diplomatic post to assign to some congenial featherhead Synonyms birdbrain, cuckoo, ditz, featherbrain, flibbertigibbet, nitwit, rattlebrain, scatterbrain, softheadRelated Words fool, goose, silly, simpletonAntonyms sobersides