It wasn't me who defined it that way. It was the dictionary's definition, and it is the definition I learned in philosophy classes while in college, and it is also the way that some the small hand-full of atheist whom I know, define there thoughts of it. I didn't see "godlessness" as a definition for "atheism" in my dictionary. Using your definition, I can understand your thought on the subject. Philosophically speaking, the word godlessness is an oxymoron. Either there is a God or there isn't, but if there is the concept of God, God exists at least in our mind, if not in our physical world, so God exists either way, if by definition and concept alone.
"lack thereof" is more precise, given your definition. "Current beliefs" ties more into the definition I was using, and for one to have beliefs that God doesn't exist, that requires effort/thought, where as lack of belief requires nothing.
I think about this person you mention, who has no concept of God, even after being told by others. That isn't to say that the person doesn't believe in God. It could simply mean that the person sees God through different eyes, and doesn't recognize God in name. Let's say in that same remote village, they have a word for each of the 10,000 shades of blue, yet you recognize each of the colors as simply being blue. Your limited vocabulary of the term "blue" doesn't mean that you cannot see all 10,000 shades and variations, yet you still wouldn't use all 10,000 names to describe the shades of blue. You would therefore reject those names and simplify each as "blue."
Here, you use it again, outside of your definition. The person you describe, never having been informed about God from the outside world, doesn't dismiss anything, until AFTER his encounter with the informer. Using your definition, if he was just Godless, he wouldn't be dismissing God, which takes action/thought. It sounds like you are using two very different definitions of atheist to prove one point about faith. I think I understand your point on faith very well, and I agree with it. I just have a problem with the semantics on atheism.