A variety of terms, actually. Here's a few:
Agnostic
Agnostic Non-Theist
Annoying Non-Theist
Pretentious
A Know-Nothing
Silly
Pinko Commie Fascist
Mr. Grumpy Bottoms
ChiChi
Hey, you!
Moron
Confused
Inarticulate
To better answer your question, I need clarification on the question. I mean, if a person believed that mere mortals were incapable of grasping knowledge of religion, they'd have to be pretty dumb. Pretty much everyone knows something about some religion.
And if someone believed that there were a higher power preventing humans from finding out about gods and deities, well, that'd be pretty cool. I imagine this higher power and the gods must fight all the time.
There is an inherent problem with this quote as it fails to recognize that ignorance itself is a form of error. Believing in nothing does not make one closer to the truth, as understanding and knowledge are necessary to attain a better understanding of the world. It is important to seek truth, rather than settle for ignorance or incorrect beliefs.
Rawls
jack Taylor believes that purple best describes Shakespeare.
cynicism
Faber sees himself as a disillusioned intellectual who is disillusioned by society's rejection of literature and critical thinking. He believes in the power of books to inspire critical thought and change, and aspires to protect and preserve knowledge in a society that values ignorance and conformity.
A Deist.
naturalist
Skeptics tend to believe that true knowledge is an impossible endeavor. The range of skepticism goes from doubt to full blown denying that knowledge exists.
populist
A theistic religion is one that believes in one or more Gods. A monotheistic religion, like Christianity or Islam, believes in one God. A polytheistic religion, like Hinduism, believes in many Gods. A theist describes a person who believes in a God or many Gods. The opposite would be an atheist, who does not believe in God.
a chance to help other people or knowledge of the hidden sin in others
materialist; enlightened