whacko vs disparagement

whacko and disparagement both are nouns.

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

whacko (noun)	disparagement (noun)
a person who is regarded as eccentric or mad	the act of speaking contemptuously of
	a communication that belittles somebody or something