antifeminism vs sexism

antifeminism and sexism both are nouns.

Word	Noun	Adjective	Verb	Adverb
antifeminism	Yes	No	No	No
sexism	Yes	No	No	No

As nouns, sexism is a hypernym of antifeminism; that is, sexism is a word with a broader meaning than antifeminism:

antifeminism: activity indicative of belief in the superiority of men over women
sexism: discriminatory or abusive behavior towards members of the opposite sex

antifeminism (noun)	sexism (noun)
activity indicative of belief in the superiority of men over women	discriminatory or abusive behavior towards members of the opposite sex