impersonator vs slicker

impersonator and slicker both are nouns.

Word	Noun	Adjective	Verb	Adverb
impersonator	Yes	No	No	No
slicker	Yes	No	No	No

As nouns, slicker is a hypernym of impersonator; that is, slicker is a word with a broader meaning than impersonator:

Other hypernyms of impersonator include beguiler, cheat, cheater, deceiver, trickster.

impersonator (noun)	slicker (noun)
someone who (fraudulently) assumes the appearance of another	a macintosh made from cotton fabric treated with oil and pigment to make it waterproof
	someone who leads you to believe something that is not true
	a person with good manners and stylish clothing