Disbelief is a denial. It is an affirmation that you don't believe in something.<quoted text>
Sorry, Dave, but "dis-" means "not". And yes, there are similarities in meaning between "disavow" and "lack of vow", though modern usage gives disavow a stronger meaning. "lack of vow" would mean neither vowing for or against, while "disavow" would be to vow against.
However, the case with "disbelief" and "lack of belief" are essentially the same. Both mean "to not believe".
You really should think these things through more thoroughly.
So you are saying that belief is the same as non-belief?
Explain to me, clearly, the semantic difference between "a disbelief in Santa Claus" and "a lack of belief in Santa Claus".
Lack of a belief is no commitment to a certain thinking about something. It is being apathetic and non-committal.
You are on here denying. You are committed to a belief.
No matter what you might like to think.