It's a disbelief
xchange,
The position is not called "a-belief" it is called "a-theist"
a-moral = without morals
a-belief = without belief
a-theist = without god (theist is from theos : a believer in god)
Many people who call themselves atheists are really agnostic because an atheist is an inherent impossibility, which is just exactly what Dawkins admits when pinned down. Of course, he would like to have it both ways, at times claiming each when it seems expedient to him.