unitarian

/Y UW0 N AH0 T EH1 R IY0 AH0 N/
noun
  1. 1

    One who denies the doctrine of the Trinity, believing that God exists only in one person; a unipersonalist.

  2. 2

    A Muwahhid.

  3. 3

    One who rejects the principle of dualism.

  4. 4

    A monotheist.

adjective
  1. 1

    Espousing a unitary view of something

    โ€œthe unitarian position on executive powerโ€

Source: https://en.wiktionary.org/wiki/unitarian