impersonator vs disparagement

impersonator and disparagement both are nouns.

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

impersonator (noun)	disparagement (noun)
someone who (fraudulently) assumes the appearance of another	the act of speaking contemptuously of
	a communication that belittles somebody or something