sly vs crafty

sly and crafty both are adjectives.

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

As adjectives, sly and crafty are synonyms defined as:

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

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