- sharp-witted
- adjshrewd, quick-witted, keen, acute, astute, Scot, and North Eng. gleg; intelligent, critical, discerning, discriminating, perspicacious, brainy, hard-headed, long-headed, farsighted, penetrating, thoughtful; sagacious, judicious, prudent, wise, sensible, knowing, comprehending, imaginative; alert, wide-awake; brilliant, luminous, bright; smart, clever, foxy, crafty, cunning, calculating, sharp as a tack, Sl. on the ball, Inf. crack, Sl. crackerjack, Inf. whiz-bang, Brit. Si. whizzo.
A Note on the Style of the synonym finder. 2014.