antagonise vs nark

antagonise is not a noun while nark is a noun.

Word	Noun	Adjective	Verb	Adverb
antagonise	No	No	Yes	No
nark	Yes	No	Yes	No

As verbs, nark is a hypernym of antagonise; that is, nark is a word with a broader meaning than antagonise:

Other hypernyms of antagonise include annoy, bother, chafe, devil, get at, get to, gravel, irritate, nettle, rag, rile, vex.

antagonise (noun)	nark (noun)
	an informer or spy working for the police
	a lawman concerned with narcotics violations

antagonise (verb)	nark (verb)
provoke the hostility of	inform or spy (for the police)
act in opposition to	cause annoyance in; disturb, especially by minor irritations