derogation vs irritating

derogation is a noun but irritating is not a noun.

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

derogation (noun)	irritating (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)	irritating (adjective)
	causing irritation or annoyance
	(used of physical stimuli) serving to stimulate or excite
	causing physical discomfort