Select the most appropriate one-word substitution for the given group of words.

A person who is not sure about the existence of God.

Agnostic

The most appropriate one-word substitution for the given group of words is agnostic.

• Theist means a person who believes in the existence of a god or gods.
• Polytheist means a person who believes in multiple gods.
• Atheist means a person who does not believe in the existence of any gods.
• Agnostic means a person who does not know or believe that it is impossible to know whether or not God exists.