Brilliant
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foolish, zany, stupid, mad, tomfool, conservative, silly, typical, nonsensical, leaden, understated, unintellectual, cockeyed, dulled, subtle, unintelligent, half-baked, unimportant, unnoteworthy, cuckoo, insignificant, empty-headed, slow, unnoticeable, ignorant, ordinary, regular, sunless, vacuous, normal, nutty, unflashy, loony, muted, lackluster, common, dippy, preposterous, harebrained, unreverberant, unimpressive, nonintellectual, dim, blackened, gray, dotty, plain, simpleminded, concealed, asinine, kooky, crackpot, subdued, balmy, unaware, uninformed, senseless, undistinguished, quiet, absurd, obscure, crazy, lowbrow, unthinking, feebleminded, cloudy, featherheaded, unobtrusive, colorless, fool, sappy, idiotic, lunatic, dull, moronic, poor, brain dead, modest, hidden, insane, second-rate, inferior, inconspicuous, palish, inept, pinheaded, colourless, imbecile, dark, gloomy, unaffected, nonresonant, unassuming, unremarkable, pitch-dark, wacky, daft, restrained, Daffy, toned down, unpretentious, screwball, bad, unstylish, pitch black, usual, unemphatic.