anticryptic
/ˌæntɪˈkrɪptɪk/Definitions
1. adjective
describing a message, text, or code that is difficult to decipher or interpret.
“The professor praised the student’s attempt to decipher the anticroptic poem.”
2. noun
a message, text, or code that is difficult to decipher or interpret.
“The cryptanalyst specialized in breaking down anticroptic codes for the government.”