disparagement vs plaguey

disparagement is a noun but plaguey is not a noun.

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

disparagement (noun)	plaguey (noun)
the act of speaking contemptuously of
a communication that belittles somebody or something

disparagement (adjective)	plaguey (adjective)
	causing irritation or annoyance
	likely to spread and cause an epidemic disease

disparagement (adverb)	plaguey (adverb)
	in a pernicious or annoying manner