Unitarian
From Longman Dictionary of Contemporary EnglishRelated topics: ChristianityUnitarianU‧ni‧ta‧ri‧an /ˌjuːnəˈteəriən $ -ˈter-/ noun [countable] RRCa member of a Christian group that does not believe in the Trinity —Unitarian adjectiveExamples from the CorpusUnitarian• Even Jefferson sometimes allowed himself to be called a Unitarian.