noun
theist; deist
Refers to a person who believes in a god or gods. In Japanese, the distinction between theism and deism is often not strictly made without additional context.
彼は有神論者で、毎週教会に通っている。
He is a theist and goes to church every week.
有神論者と無神論者の間で議論が続いている。
The debate between theists and atheists continues.
Compound of 有神論 (theism) + 者 (person). 有神論 is from 有 (existence) + 神 (god) + 論 (theory).