incredulity Meaning, Definition & Usage

  1. noun doubt about the truth of something
    skepticism; mental rejection; disbelief.

WordNet

In`cre*du"li*ty noun
Etymology
L. increduitas: cf. F. incrédulité.
Definitions
  1. The state or quality of being icredulous; a withholding or refusal of belief; skepticism; unbelief; disbelief.
    Of every species of incredulity, religious unbelief is the most irrational. Buckminster.

Webster 1913