ideologue
noun: 1. a person who zealously advocates an ideology. 2. an often blindly partisan advocate or adherent of a particular ideology. 3. an impractical idealist : theorist. Examples from Merriam-Webster: as long as there are ideologues controlling both sides of the aisle, legislative compromise is out of the question // the revolutionaries proved to be impractical ideologues who had no idea how to run a country. Related Words: ideography, ideokinetic apraxia, ideological, ideologist, ideologize, ideologue, ideology, ideomotor, ideomotor apraxia, ideopolis, ides. Synonyms: crusader, fanatic, militant, partisan (also partizan), red hot, true believer, zealot. Antonyms: nonmilitant. Origin: 1805–15; < French idéologue; see ideo-, -logue. First Known Use: 1815. History and Etymology: French idéologue, back-formation from idéologie. Variant: less commonly "idealogue." Added: 12.30.19 {10:58 AM} Source 1, Source 2.