Trinitarianism [trin-i-tair-ee-uh-niz-uh m] EXAMPLES|WORD ORIGIN noun the belief in, or doctrine of, the Trinity.
Origin of Trinitarianism+ Related formsan·ti-Trin·i·tar·i·an·ism, noun Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 Examples from the Web for trinitarianism Historical Examples of trinitarianism
And this is naturally to be expected, because God is one Trinitarianism is not Tritheism.
He returned to Trinitarianism, and a singular and childlike humility became one of his most marked characteristics.
John W. Cousin