unitarian

adjective3

1. •
   Espousing a unitary view of something.
2. •
   Espousing a unitary view of God.
3. •
   Espousing a unitary view of national government.

noun4

1. •
   A person who rejects dualism in other contexts.
2. •
   A Christian who denies the doctrine of the Trinity, usually stressing some distinctions between God the Father and God the Son without denying the divinity of Jesus.
3. •
   Synonym of Muwahhid, a Muslim advocating God's strict unity.
4. •
   Synonym of monotheist, a believer in the unity of God, particularly non-Christians (Muslims, Jews, etc.) discussed from a Christian perspective.

noun2

1. •
   A follower of Unitarian Universalism or a similar non-creedal (non-dogmatic) religion (either Christian or non-Christian) that originated historically from Christian Unitarianism.

   • The Unitarians never kneel. But I want to kneel. — 2020
2. •
   A member of a political movement advocating a unitary state rather than a federal one, especially the Unitarios of nineteenth century Argentina (known as the Unitarian Party in English).

adjective1

1. •
   Pertaining to Unitarianism.

   • It was no less than whether the psychic movement in Britain was destined to take a Unitarian or a Trinitarian course. — 1925