derogation vs undesirable

derogation and undesirable both are nouns.

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

derogation (noun)	undesirable (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	one whose presence is undesirable
a communication that belittles somebody or something

derogation (adjective)	undesirable (adjective)
	not wanted
	not worthy of being chosen (especially as a spouse)