What is another word for ideologist?
Pronunciation: [ˌa͡ɪdɪˈɒləd͡ʒˌɪst] (IPA) 
Ideologist refers to a person who advocates or supports a particular ideology or belief system. The word can be substituted with a number of synonyms that convey the same meaning. Some of the synonyms for ideologist include ideologue, ideator, theoretician, dogmatist, thinker, philosopher, visionary, and theorist. An ideologue is a person who is inclined towards a specific ideology and is determined to promote it zealously. A theoretician is someone who creates and studies theories. A dogmatist is someone who is rigid in their beliefs and is not open to new or different ideas. Thinker, philosopher, and visionary refer to individuals who engage in deep thought and contemplation. Lastly, a theorist is someone who develops and proposes theories.
