unitarianism

The affirmation of the unipersonality of the Deity; the denial of the doctrine of the Trinity, or (rarely) of polytheism; the doctrines of the Unitarians.

[lowercase] Any unitary system.

[lowercase] In philosophy, the doctrine that mind and matter are one, or that there is but one general kind of substance.

The doctrines of Unitarians.

The belief in a single God, not divided into any aspects, particularly when presented as a contrast to Christian trinitarianism.

Christian doctrine that stresses individual freedom of belief and rejects the Trinity