Definition of cryptonymous in English:

cryptonymous

Pronunciation /kripˈtänəməs/

adjective

See cryptonym

‘One unnamed, cryptonymous administration source said the report has already been optioned to Hollywood for an undisclosed sum.’
  • ‘Mailer comes up with a truly ingenious plot device: Harvey assigns Harry to track down the cryptonymous C.I.A. file clerk who, as Harvey sees it, defied his authority; reluctantly, Harry must trail himself.’