A person who adheres to Arianism, a Christian theological doctrine that denies the divinity of Jesus Christ, stating that he is subordinate to God the Father.
The Arianist's belief in the subordination of Jesus to God was considered heretical by the early Christian church.
Many Arianists faced persecution for their unorthodox beliefs during the fourth century.
I met an Arianist scholar who provided an interesting perspective on early Christian theology.