Definition of skepticism noun from the Oxford Advanced American Dictionary

 

skepticism

 noun
noun
NAmE//ˈskeptɪsɪzəm//
 
[uncountable, singular]
 
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an attitude of doubting that claims or statements are true or that something will happen Such claims should be regarded with a certain amount of skepticism. Other scientists have expressed skepticism about these results.
See the Oxford Advanced Learner's Dictionary entry: skepticism