Main entry: incisive
Definition: suitable for cutting or piercing
Usage: incisive teeth
Main entry: penetrating, penetrative, incisive, discriminating, piercing, acute, keen, knifelike, sharp
Definition: having or demonstrating ability to recognize or draw fine distinctions
Usage: 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