Unitarianism
noun/ˌjuːnɪˈteəriənɪzəm/
/ˌjuːnɪˈteriənɪzəm/
[uncountable]- the beliefs and principles of a Christian Church that does not believe in the Trinity and has no formal teachings
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Unitarianism
Definition of Unitarianism noun from the Oxford Advanced Learner's Dictionary