Airheaded
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apt, disinterested, steady, thoughtful, smart, knowing, schooled, foxy, ingenious, percipient, skilled, Sharp-witted, responsible, observant, ultrasmart, cerebral, sagacious, informed, disenthralled, reasonable, shrewd, astute, nimble, retentive, mindful, discerning, prudent, existing, intelligent, hyperintelligent, rational, aware, insightful, sharp, quick, sapient, acute, well-read, highbrow, resourceful, alert, supersmart, sound, attentive, fast, uninterested, cunning, quick-witted, wily, learned, sane, judicious, literate, scholarly, erudite, bored, sensible, keen, logical, filled, crafty, full, savvy, unoccupied, educated, indifferent, brainy, valid, perspicacious, intellectual, recalling, trained, perceptive, brilliant, bright, serious, remembering, thinking, knowledgeable, wise, sage, clever.