women's rightist vs meliorist

women's rightist and meliorist both are nouns.

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

As nouns, meliorist is a hypernym of women's rightist; that is, meliorist is a word with a broader meaning than women's rightist:

Other hypernyms of women's rightist include crusader, reformer, reformist, social reformer.

women's rightist (noun)	meliorist (noun)
a supporter of feminism	a disputant who advocates reform