unitarianism noun1 •The belief in a single God, not divided into any aspects, particularly when presented as a contrast to Christian trinitarianism.Some New England congregations embraced Unitarianism (the belief in a unitary God as opposed to a holy trinity), and some of those moved on to Unitarian Universalism[.] — 2011 formsunitarianisms
Unitarianism noun1 •A Christian theology that God is one person, rather than the three equal persons (Father, Son, and Holy Spirit) posited by Trinitarianism.
