Definition of skepticism
1
: an attitude of doubt or a disposition to incredulity either in general or toward a particular object
2a
: the doctrine that true knowledge or knowledge in a particular area is uncertain
b
: the method of suspended judgment, systematic doubt, or criticism characteristic of skeptics
3
: doubt concerning basic religious principles (such as immortality, providence, and revelation)
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Merriam-Webster unabridged














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Time Traveler for skepticism
The first known use of skepticism was in 1646
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