Boneheaded
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foxy, apt, rational, astute, reasonable, Sharp-witted, watery, logical, resourceful, valid, perceptive, highbrow, skilled, knowing, learned, thinking, perspicacious, scholarly, well-read, clear, knowledgeable, sound, savvy, judicious, crafty, insightful, brainy, educated, percipient, aware, wise, wily, clever, ingenious, brilliant, intellectual, unfriendly, trained, quick, cunning, nimble, smart, sagacious, prudent, sensible, uncrowded, bright, literate, hyperintelligent, acute, quick-witted, ultrasmart, erudite, cerebral, thin, fast, unsociable, sage, informed, sane, thoughtful, diluted, loose, discerning, intelligent, keen, supersmart, sapient, schooled, slight, shrewd, sharp, attenuated.