disparagement vs pestering

disparagement is a noun but pestering is not a noun.

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

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

disparagement (adjective)	pestering (adjective)
	causing irritation or annoyance