Vacuous
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flush, sound, wily, overflowing, sage, nimble, full, judicious, astute, insightful, communicative, cunning, knowledgeable, shrewd, cerebral, brimful, perceptive, literate, erudite, gorged, informed, reasonable, percipient, communicatory, intelligent, foxy, well-read, busy, furnished, complete, brimming, skilled, rational, teeming, aware, perspicacious, packed, trained, sane, acute, sapient, sensible, learned, inhabited, crafty, prudent, logical, valid, crowded, highbrow, jammed, Brimmed, intellectual, Crammed, occupied, thinking, discerning, schooled, savvy, sagacious, filled, resourceful, replete, scholarly, apt, ultrasmart, knowing, ingenious, educated.