foxy vs sly

foxy and sly both are adjectives.

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

As adjectives, foxy and sly are synonyms defined as:

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

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