devious vs inauthentic

devious

adj
  • Cunning or deceiving, not straightforward or honest, not frank. 

  • Roundabout, circuitous, deviating from the direct or ordinary route. 

inauthentic

adj
  • Not authentic or genuine; spurious. 

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