millenarist vs optimist

millenarist and optimist both are nouns.

Word	Noun	Adjective	Verb	Adverb
millenarist	Yes	No	No	No
optimist	Yes	No	No	No

As nouns, optimist is a hypernym of millenarist; that is, optimist is a word with a broader meaning than millenarist:

millenarist: a person who believes in the coming of the millennium (a time of great peace and prosperity)
optimist: a person disposed to take a favorable view of things

millenarist (noun)	optimist (noun)
a person who believes in the coming of the millennium (a time of great peace and prosperity)	a person disposed to take a favorable view of things