idealogue vs theoretician

idealogue and theoretician both are nouns.

Word	Noun	Adjective	Verb	Adverb
idealogue	Yes	No	No	No
theoretician	Yes	No	No	No

As nouns, idealogue and theoretician are synonyms defined as:

idealogue and theoretician: someone who theorizes (especially in science or art)

Other synonyms of idealogue include theoriser, theorist, theorizer.

idealogue (noun)	theoretician (noun)
someone who theorizes (especially in science or art)	someone who theorizes (especially in science or art)