[adjective] having or demonstrating ability to recognize or draw fine distinctions; "an acute observer of politics and politicians"; "incisive comments"; "icy knifelike reasoning"; "as sharp and incisive as the stroke of a fang"; "penetrating insight"; "frequent penetrative observations" Synonyms:acute, discriminating, keen, knifelike, penetrating, penetrative, piercing, sharp
[adjective] very penetrating and clear and sharp in operation; "an incisive mind"; "a keen intelligence"; "of sharp and active intellect" Synonyms:keen, sharp
[adjective] suitable for cutting or piercing; "incisive teeth"; "the piercing needle" Synonyms:piercing