monotheistic
[mon-uh-thee-is-tik]
adjective
pertaining to, characterized by, or adhering to monotheism, the doctrine that there is only one God: a monotheistic religion.
Origin of monotheistic
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
monotheistic
Online Etymology Dictionary, © 2010 Douglas Harper