unitarian

American  

[yoo-ni-tair-ee-uhn] / ˌyu nɪˈtɛər i ən /

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.

3. an advocate of unity or centralization, as in government.

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adjective

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

2. unitary.

Unitarian ¹ British  

/ ˌjuːnɪˈtɛərɪən /

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

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adjective

1. of or relating to Unitarians or Unitarianism

unitarian ² British  

/ ˌjuːnɪˈtɛərɪən /

noun

1. a supporter of unity or centralization

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adjective

1. of or relating to unity or centralization

2. another word for unitary

Other Word Forms

• non-Unitarian adjective
• nonunitarian noun
• pro-Unitarian adjective

Etymology

Origin of unitarian

1680–90; < New Latin ūnitāri ( us ) ( Latin ūnit ( ās ) unity + -ārius -ary ) + -an

Example Sentences

In a series of cases over the past 15 years, the Supreme Court has moved in an unambiguously unitarian, pro-presidential direction.

From Salon • Oct. 8, 2025

All of the grownups belonged to churches, except for one wiseguy who described himself as a lapsed unitarian.

From Time • Sep. 26, 2014

Sorensen evinced a Midwestern sensibility, a unitarian compassion and an unmatched, razor-sharp wit.

From Time • Nov. 19, 2010

But he thoroughly identified his tastes and prejudices with those of his rude followers, and in politics he was fiercely unitarian.

From The South American Republics Part I of II by Dawson, Thomas C.

And he gradually relapsed from a pure unitarian theism into what was practically Hindu pantheism and the mysticism of the Yogis.

From The Tribes and Castes of the Central Provinces of India—Volume I (of IV) by Russell, R. V. (Robert Vane)