Ideologue – विचारक, सिद्धांतानुयायी व्‍यक्ति

Noun –  Ideology is the set of ideas and beliefs that are important to a person, a group, or a culture.

Example – More importantly, economic theory has become a branch of political ideology.

Synonyms – Articles of faith, credo, creed, culture, dogma, ideas, outlook, philosophy, principles, system, tenets, theory, view, weltanschauung.