Lack of belief or unbelief is a synonym for disbelief, they are not two different definitions.
I didn't know you were saying about atheism, this is what you said "I agree with you that atheism defined as lack and only lack is not a good position. I don't think it's possible in an adult human with a functioning brain."
I didn't know you were saying about atheism, this is what you said "I agree with you that atheism defined as lack and only lack is not a good position. I don't think it's possible in an adult human with a functioning brain."
