lunatic vs disparagement

lunatic and disparagement both are nouns.

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

lunatic (noun)	disparagement (noun)
an insane person	the act of speaking contemptuously of
a reckless impetuous irresponsible person	a communication that belittles somebody or something

lunatic (adjective)	disparagement (adjective)
insane and believed to be affected by the phases of the moon