unitarian

noun

1. a person who maintains that God is one being, rejecting the doctrine of the Trinity.
2. (initial capital letter) a member of a liberal religious denomination founded upon the doctrine that God is one being, and giving each congregation complete control over its affairs.Compare Unitarian Universalism.
3. an advocate of unity or centralization, as in government.

adjective

4. (initial capital letter) pertaining to the Unitarians or their doctrines; accepting Unitarianism; belonging to the Unitarians.
5. unitary.

noun

1. a supporter of unity or centralization

adjective

2. of or relating to unity or centralization
3. another word for unitary

noun

1. theol a person who believes that God is one being and rejects the doctrine of the Trinity
2. ecclesiast an upholder of Unitarianism, esp a member of the Church (Unitarian Church) that embodies this system of belief

adjective

3. of or relating to Unitarians or Unitarianism

n.1680s, “one who rejects the doctrine of the Trinity,” from Modern Latin unitarius (1650s), from Latin unitas (see unity) + -ian.