Incredulity

(n.) The state or quality of being i/credulous; a withholding or refusal of belief; skepticism; unbelief; disbelief.

Thesaurus Entries

Humism, Pyrrhonism, agnosticism, atheism, denial, disbelief, discredit, doubt, heresy, inability to believe, infidelity, minimifidianism, misbelief, nonbelief, nullifidianism, rejection, scoffing, skepticism, unbelief, unbelievingness, unfaith