slickness vs skulduggery

slickness and skulduggery both are nouns.

Word	Noun	Adjective	Verb	Adverb
slickness	Yes	No	No	No
skulduggery	Yes	No	No	No

As nouns, slickness and skulduggery are synonyms defined as:

slickness and skulduggery: verbal misrepresentation intended to take advantage of you in some way

Other synonyms of slickness include hanky panky, hocus-pocus, jiggery-pokery, skullduggery, trickery.

slickness (noun)	skulduggery (noun)
a slippery smoothness	verbal misrepresentation intended to take advantage of you in some way
a kind of fluent easy superficiality
verbal misrepresentation intended to take advantage of you in some way