sly vs wily

sly and wily both are adjectives.

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

As adjectives, sly and wily are synonyms defined as:

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

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