A non-doctrinal religion that stresses individual freedom of belief and rejects the Trinity
Open English WordNet
Unitarianism is a nontrinitarian branch of Christian theology.
A liberal Christian theological movement known for its belief in the unitary nature of God, and for its rejection of the doctrines of the Trinity, original sin, predestination, and of biblical inerrancy
Liberal Protestant movement, of which some portions merged with Universalism
The religious belief that God is a single Person.