devious vs unprejudiced

devious

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

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

unprejudiced

adj
  • Not prejudiced. 

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