Ultrasmart
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lunatic, fatuous, lowbrow, dense, unintellectual, Chuckleheaded, vacuous, senseless, gormless, unsmart, nutty, brainless, simpleminded, birdbrained, tomfool, unintelligent, dotty, pinheaded, fool, bubbleheaded, lamebrain, uneducated, nonintellectual, simple, dumb, loony, boneheaded, slow-witted, thick, witless, empty-headed, featherheaded, absurd, dim, idiotic, soft, balmy, daft, untaught, silly, moronic, harebrained, dunderheaded, preposterous, Daffy, dopey, doltish, opaque, crackpot, feebleminded, Weak-minded, half-witted, dull, thick-witted, cuckoo, unthinking, softheaded, asinine, thickheaded, lunkheaded, half-baked, brain dead, uninformed, insane, slow, obtuse, nonsensical, illiterate, mindless, screwball, zany, foolish, mad, dorky, wacky, kooky, sappy, cockeyed, dippy, crazy, airheaded, ignorant, unwise, imbecile, dim-witted.