0 the beliefs and activities of a part of the Christian Church that does not believe in the Trinity (= the existence of one God in three forms, the Father, the Son, and the Holy Spirit):
Unitarianism, a tolerant and loosely-defined system of belief, had attracted Coleridge since his Cambridge years.
Unitarianism was what might be described as the free-thinking version of Christianity.
Unitarianism has a good track record of bringing women into leadership positions.
