feminist vs women's rightist

feminist and women's rightist both are nouns.

Word	Noun	Adjective	Verb	Adverb
feminist	Yes	Yes	No	No
women's rightist	Yes	No	No	No

As nouns, feminist and women's rightist are synonyms defined as:

Other synonyms of feminist include libber, women's liberationist.

feminist (noun)	women's rightist (noun)
a supporter of feminism	a supporter of feminism

feminist (adjective)	women's rightist (adjective)
of or relating to or advocating equal rights for women