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 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"
3. (adj) cutting, keen, knifelike, piercing, stabbing, lancinate, lancinating
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"
4. (adj) knifelike
having a sharp or distinct edge
"a narrow knifelike profile"
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Definitions of knifelike 
