1. (adj)knifelike cutting or able to cut as if with a knife
2. (adj)acute, discriminating, incisive, keen, knifelike, penetrating, penetrative, piercing, sharp having or demonstrating ability to recognize or drawfine 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"
3. (adj)cutting, keen, knifelike, piercing, stabbing, lancinate, lancinating painful as if caused by a sharpinstrument "a cutting wind"; "keen winds"; "knifelike cold"; "piercing knifelike pains"; "piercing cold"; "piercing criticism"; "a stabbing pain"; "lancinating pain"
4. (adj)knifelike having a sharp or distinct edge "a narrow knifelike profile"