knavish vs crafty

knavish and crafty both are adjectives.

Word	Noun	Adjective	Verb	Adverb
knavish	No	Yes	No	No
crafty	No	Yes	No	No

As adjectives, knavish and crafty are synonyms defined as:

Other synonyms of knavish include cunning, dodgy, foxy, guileful, slick, sly, tricksy, tricky, wily.

knavish (adjective)	crafty (adjective)
marked by skill in deception	marked by skill in deception