monarchian
/mɒnˈɑrkiən/Definitions
1. noun
A follower of a doctrine that the one God is a single person, as distinct from a trinity of persons.
“The monarchian view of the nature of God has been debated by theologians for centuries.”
2. adjective
Relating to or characteristic of a monarch or monarchism.
“The monarchian tendencies of the medieval European monarchies led to the rise of absolute power.”