simpleminded

1 lacking in worldly wisdom or informed judgment a simpleminded view of a complex problem Synonyms aw-shucks, dewy, dewy-eyed, green, ingenuous, innocent, naïf (or naif), primitive, simple, naive, uncritical, unknowing, unsophisticated, unsuspecting, unsuspicious, unwary, unworldly, wide-eyedRelated Words callow, childish, immature, inexperienced, raw; childlike, idealistic, impractical, unrealistic; believing, credulous, gullible (also gullable), susceptible, trustful, trusting, unguarded; beguiled, duped, gulled, tricked; careless, heedless, thoughtlessNear Antonyms critical, cynical, doubting, incredulous, skeptical, suspecting, suspicious, unconvinced; careful, cautious, guarded, leery (also leary), wary, watchful; down-to-earth, hardheaded, pragmatic (also pragmatical), realistic, sober; street-smart, streetwiseAntonyms cosmopolitan, experienced, knowing, sophisticated, worldly, worldly-wise

2 showing or marked by a lack of good sense or judgment scornful of their simpleminded belief that their parents would always be there to take care of them Synonyms 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, foolish, stupid, tomfool, unwise, wacky (also whacky), weak-minded, witless, zanyRelated Words 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, unreasonedNear Antonyms brainy, bright, clever, intelligent, smart; logical, rational, reasonable, valid; well-advisedAntonyms judicious, prudent, sagacious, sage, sane, sapient, sensible, sound, wise