Maybe a bit, but atheists come in all flavors, and can even be religious or spiritual. Other times it's basically just shorthand for being a religious skeptic. I even heard a pantheist claim to be an atheist once, which tbh felt a bit over the top. It's a pretty flexible term, though. I think either pantheism or deism are the appropriate terms for what you're describing, if you want to call it a god. If you don't then I wouldn't overcomplicate it.