agnostic
noun
"Agnostic" refers to someone who believes that it's impossible to know whether God or a higher power exists. It can also describe someone who is unsure or does not have a definitive belief about such matters.
Example
- I'm an agnostic, so I don't know if there is a God or not.
- She is an agnostic, so she isn't sure if she believes in a higher power.
- He's an agnostic, so he doesn't have any strong beliefs about religion.