disingenuously

adverb3

1. •
   In a manner that is not frank or open; deceptively.
2. •
   In a manner that adopts a pose of naïveté, possibly to make a point or to deceive.
3. •
   In an unnoble manner; in a manner unbecoming of true honor or dignity; unworthily.

   • The letter's false intent trumps any truths within, which one would expect of a woman who disingenuously calls herself Fidessa. — 2009