1. Doubt about the truth of something
   - incredulity, disbelief, mental rejection, scepticism [Brit, Cdn] 
2. The disbelief in any claims of ultimate knowledge
   - agnosticism, scepticism [Brit, Cdn]

Derived forms: skepticisms

See also: skeptical [N. Amer]

Type of: disbelief, doubt, doubtfulness, dubiety, dubiousness, incertitude, unbelief, uncertainty

Encyclopedia: Skepticism

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