resister vs antagonist

resister and antagonist both are nouns.

Word	Noun	Adjective	Verb	Adverb
resister	Yes	No	No	No
antagonist	Yes	No	No	No

As nouns, resister and antagonist are synonyms defined as:

Other synonyms of resister include adversary, opponent, opposer.

resister (noun)	antagonist (noun)
someone who systematically obstructs some action that others want to take	a drug that neutralizes or counteracts the effects of another drug
someone who offers opposition	a muscle that relaxes while another contracts
	someone who offers opposition