derogation vs dullard

derogation and dullard both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
dullard	Yes	No	No	No

derogation (noun)	dullard (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person who evokes boredom
a communication that belittles somebody or something	a person who is not very bright