denial

noun8

1. •
   An assertion of untruth.

   • The singer has issued a sweeping denial of all the rumors.
2. •
   Refusal to admit responsibility for wrongdoing.
3. •
   Negationism, denialism of historical facts or accepted interpretation.
4. •
   Refusal to believe that a problem exists.

   • We couldn't break through his denial about being alcoholic.
5. •
   A defense mechanism involving a refusal to accept the truth of a phenomenon or prospect.

   • He is in denial that he has a drinking problem.
6. •
   A refusal or failure to provide or grant something that is requested or desired.

   • The denial of medical treatment to those who cannot afford to pay is scandalous.
   • I cannot understand the bank's denial of my loan application.
7. •
   A disownment or disavowal

   • The denial of Jesus by Peter.
8. •
   The negation in logic.

   • The denial of "There might be X" is the null, "False, there is no X."