Utopian vs reformist

Utopian and reformist both are nouns.

Word	Noun	Adjective	Verb	Adverb
Utopian	Yes	Yes	No	No
reformist	Yes	Yes	No	No

As nouns, reformist is a hypernym of Utopian; that is, reformist is a word with a broader meaning than Utopian:

Other hypernyms of Utopian include crusader, meliorist, reformer, social reformer.

Utopian (noun)	reformist (noun)
an idealistic (but usually impractical) social reformer	a disputant who advocates reform

Utopian (adjective)	reformist (adjective)
of or pertaining to or resembling a utopia	favoring or promoting reform (often by government action)