pestiferous vs disparagement

pestiferous is not a noun while disparagement is a noun.

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

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

pestiferous (adjective)	disparagement (adjective)
causing irritation or annoyance
likely to spread and cause an epidemic disease
tending to corrupt or pervert
contaminated with infecting organisms