Synonyms for sharp

acerbic, acute, alert, astute, biting, bitter, bright, caustic, clever, crisp, curt, cutting, discerning, eagle-eyed, edged, fierce, harsh, honed, incisive, intelligent, intense, keen, knife-like, mordant, piercing, pointed, quick-witted, razor-edged, severe, sharp-edged, shrewd, smart, stinging, trenchant