disparagement vs dunderhead

disparagement and dunderhead both are nouns.

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

disparagement (noun)	dunderhead (noun)
the act of speaking contemptuously of	a stupid person; these words are used to express a low opinion of someone's intelligence
a communication that belittles somebody or something