cheating vs faithless

cheating

adj
  • Unfaithful or adulterous. 

  • Unsporting or underhand. 

noun
  • The arrangement of people or items in a film so as to give the (false) impression that shots are taken from different angles in the same location. 

  • An act of deception, fraud, trickery, imposture, imposition or infidelity. 

faithless

adj
  • Unfaithful (said of people, towards their partners) 

  • Not true to allegiance, duty, or vows 

  • Lacking faith; lacking belief in something. 

  • Not believing in God, religion, or a comparable ideology. 

  • Serving to disappoint or deceive 

  • Not observant of promises or covenants. 

How often have the words cheating and faithless occurred in a corpus of books? (source: Google Ngram Viewer )