agnostic atheist

A person who holds the view that the existence of a deity cannot be proven nor disproven, but personally leans towards the idea of there not being one. In this case, agnostic is an adjective. "Atheist" has to do with belief, and "agnostic" has to do with knowledge. Two completely different animals, but can be applied to each other. Basically, a person who doesn't know and doesn't believe.