disparagement vs loony

disparagement and loony both are nouns.

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

disparagement (noun)	loony (noun)
the act of speaking contemptuously of	someone deranged and possibly dangerous
a communication that belittles somebody or something

disparagement (adjective)	loony (adjective)
	informal or slang terms for mentally irregular