skepticism
//ˈskɛptɪˌsɪzəm//
Noun
1
A doubting or questioning attitude or state of mind; an inclination to doubt or question accepted opinions or claims.
She approached the new theory with skepticism, questioning its validity.
2
The philosophical doctrine that true knowledge or certainty in a particular area is impossible.
Ancient Greek skepticism questioned whether humans could ever attain absolute knowledge.
3
Doubt or disbelief regarding religion or religious principles.
His skepticism toward organized religion grew after years of questioning traditional beliefs.