nonbelief

/ˌnɑnbɪˈlif/
noun
  1. The state of not believing something; lack of belief or faith.
    • The scientist's nonbelief in supernatural explanations was based on evidence.
    • Nonbelief in the project's success led many investors to pull out.
    • Her nonbelief in the conspiracy theory made her unpopular in that group.
Antonyms
What does "nonbelief" mean? | whatsthatwordmean | whatsthatwordmean