/ Dictionary / Index U Unitarian Universalism: Meaning and Definition of Find definitions for: Unitar'ian Univer'salism Pronunciation: [key] a North American liberal religious denomination in the Judeo-Christian heritage, formed in 1961 by the merger of the Unitarians, organized in 1825, and the Universalists, organized in 1793. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Unitarianism unitary Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language