empty-headed Antonyms

as smart as a whip quick-thinking on the ball knowledgeable savvy talented smart sharp-witted sharp sensible sagacious ruminative scholared sharp as a tack as sharp as a tack as sharp as a razor able to understand quickly mentally acute extremely clever highly educated able to think quickly sharp as a needle as sharp as a needle agile enough whip-smart resourceful rational gifted genius educated clever canny brilliant bright brainy astute alert acute ingenious intellectual quick-witted quick proficient piquant perceptive literate knowing keen inventive intuitive