derogation vs vacuous

derogation is a noun but vacuous is not a noun.

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

derogation (noun)	vacuous (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
a communication that belittles somebody or something

derogation (adjective)	vacuous (adjective)
	devoid of matter
	devoid of intelligence or thought
	devoid of significance or force