slyly vs craftily

slyly and craftily both are adverbs.

Word	Noun	Adjective	Verb	Adverb
slyly	No	No	No	Yes
craftily	No	No	No	Yes

As adverbs, slyly and craftily are synonyms defined as:

Other synonyms of slyly include artfully, cunningly, foxily, knavishly, trickily.

slyly (adverb)	craftily (adverb)
in an subtle, cunning manner	in an subtle, cunning manner