duplicity duplicity /duːˈplɪsɪti/

noun

1. Acting in bad faith; deception by pretending to entertain one set of intentions while acting under the influence of another  ( double-dealing , duplicity )
   acting in bad faith; deception by pretending to entertain one set of intentions while acting under the influence of another
   
2. A fraudulent or duplicitous representation  ( duplicity , fraudulence )
   a fraudulent or duplicitous representation