disparagement vs nitpicker

disparagement and nitpicker both are nouns.

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

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