ideologue
nounNAmE//ˈaɪdiəˌlɔɡ//, NAmE//ˈaɪdiəˌlɑɡ//, NAmE//ˈɪdiəˌlɔɡ//, NAmE//ˈɪdiəˌlɑɡ//
(also ideologist NAmE//ˌaɪdiˈɑlədʒɪst//, NAmE//ˌɪdiˈɑlədʒɪst//
) (formal) (sometimes disapproving)Check pronunciation: ideologue
Definition of ideologue noun from the Oxford Advanced American Dictionary