cheating vs double-faced

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. 

double-faced

adj
  • deceitful; hypocritical; treacherous 

  • Having two functional faces. 

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