prohibitionist vs reformist

prohibitionist and reformist both are nouns.

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

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

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

prohibitionist (noun)	reformist (noun)
a reformer who opposes the use of intoxicating beverages	a disputant who advocates reform

prohibitionist (adjective)	reformist (adjective)
	favoring or promoting reform (often by government action)