Cutting or able to cut as if with a knife.

Having or demonstrating ability to recognize or draw fine distinctions:
— Icy knifelike reasoning.

synonyms: acute, discriminating, incisive, keen, penetrating, penetrative, piercing, sharp.

Polish: przenikliwy

Painful as if caused by a sharp instrument:
— Knifelike cold.
— Piercing knifelike pains.

synonyms: cutting, keen, lancinate, lancinating, piercing, stabbing.

Having a sharp or distinct edge.