unwelcome person vs derogation

unwelcome person and derogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
unwelcome person	Yes	No	No	No
derogation	Yes	No	No	No

unwelcome person (noun)	derogation (noun)
a person who for some reason is not wanted or welcome	(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