Disbelief /(?)/

Dis·be·lief

Disbelief

n.
  1. The act of disbelieving;; a state of the mind in which one is fully persuaded that an opinion, assertion, or doctrine is not true; refusal of assent, credit, or credence; denial of belief.
    Our belief or disbelief of a thing does not alter the nature of the thing.
    No sadder proof can be given by a man of his own littleness that disbelief in great men.