Disbelief

(n.) 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.

Thesaurus Entries

agnosticism, atheism, confutability, contestability, controvertibility, deism, deniability, denial, discredit, disputability, doubt, doubtfulness, dubiety, dubiousness, dubitancy, faithlessness, heresy, inability to believe, incredulity, infidelity, minimifidianism, misbelief, nonbelief, nullifidianism, questionableness, refutability, rejection, repudiation, secularism, spurning, unbelief, unbelievingness