theorist vs idealogue

theorist and idealogue both are nouns.

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

As nouns, theorist and idealogue are synonyms defined as:

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

Other synonyms of theorist include theoretician, theoriser, theorizer.

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