nitpicker vs disparagement

nitpicker and disparagement both are nouns.

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

nitpicker (noun)	disparagement (noun)
someone who makes small and unjustified criticisms	the act of speaking contemptuously of
	a communication that belittles somebody or something