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

[ Syn: acute , discriminating , incisive , keen , knifelike , penetrating , penetrative , sharp ]

painful as if caused by a sharp instrument; a cutting wind; keen winds; knifelike cold; piercing knifelike pains; piercing cold; piercing criticism; a stabbing pain; lancinating pain

[ Syn: cutting , keen , knifelike , stabbing , lancinate , lancinating ]