KEEN

Definition

1. verb express grief verbally. — synonyms: lament
2. noun a funeral lament sung with loud wailing.
3. adjective having or demonstrating ability to recognize or draw fine distinctions. — synonyms: acute, discriminating, incisive, knifelike, penetrating, penetrative, piercing, sharp
4. adjective intense or sharp. — synonyms: exquisite
5. adjective very good. — synonyms: bang-up, bully, corking, cracking, dandy, great, groovy, neat
6. adjective painful as if caused by a sharp instrument. — synonyms: cutting, knifelike, piercing, stabbing, lancinate, lancinating
7. adjective having a sharp cutting edge or point.