To define either of these two definitions one must conclusively answer the big question first. Does God exist? Ever since man has had the ability to communicate that question has undoubtedly been asked in one form or another.
Thousands of volumes have been written on the subject of a god, and now your topic question:"Atheist or Agnostic" is dealing with the concept of a supreme being that some have claimed to have limited knowledge and or limited proof of his existence and that some have claimed they don't know.
I have come to learn that I know that I don't know how to answer this question. I have no personal experiences with a god, him ,her, it, Jehovah, or Jesus. Why that is, I don't know.
Using my own reasoning, I think that something or someone got life started. Was the universe always here? Was a god always here? My limited mind can't reach an answer to my own questions?
There have always been three camps when it comes down to answering these questions.1) for, 2) against, 3) don't know. I'm in the third camp for now.
Blueblades