It is interesting how words take on a meaning other than that originally thought. Atheist just means not a theist, nothing more - well to me anyway.
I recall Dawkins relating the tale of a woman whose daughter forthrightly told her she was an atheist. "An Atheist", the mother exclaimed, "I can accept you not believing in God, but to be an Atheist! ......"
Sweden is one of the least religious countries in the world, and yet I find when talking to relations of mine in that country, most do not self describe as atheist. Strange? The word now seems to imply a radical, almost militant, mind set.