What does "dishonesty" mean?

Dishonesty: 2. Want of honesty, probity, or integrity in principle; want of fairness and straightforwardness; a disposition to defraud, deceive, or betray; faithlessness.

Additional senses

  1. 2.Violation of trust or of justice; fraud; any deviation from probity; a dishonest act.
  2. 3.Lewdness; unchastity. Shak.

Sources