knifelike vs perceptive

knifelike and perceptive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
knifelike	No	Yes	No	No
perceptive	No	Yes	No	No

knifelike (adjective)	perceptive (adjective)
having a sharp or distinct edge	having the ability to perceive or understand; keen in discernment
having or demonstrating ability to recognize or draw fine distinctions	of or relating to perception
cutting or able to cut as if with a knife
painful as if caused by a sharp instrument