Improbity

(n.) Lack of probity; want of integrity or rectitude; dishonesty.

Thesaurus Entries

Machiavellianism, ambidexterity, artifice, bad faith, cunning, deceitfulness, dishonesty, double-dealing, doubleness, doubleness of heart, duplicity, faithlessness, falseheartedness, falseness, low cunning, treachery, two-facedness, wile