unitarian

/ˌjunɪˈtɛriən/
noun
  1. A person who belongs to a Christian denomination that rejects the doctrine of the Trinity and believes that God is one being.
    • She became a Unitarian after questioning traditional teachings about the Trinity.
    • My neighbor is a Unitarian and attends services at the local Unitarian church.
    • The Unitarians in our town host a weekly discussion group on ethics.
Antonyms
adjective
  1. Relating to the Unitarian Church or its beliefs, which emphasize reason, freedom of thought, and the unity of God.
    • They were married in a Unitarian ceremony that respected both of their backgrounds.
    • Our local Unitarian community welcomes people of all faiths.
    • The Unitarian service included readings from many different religious traditions.