- not honest; disposed to lie, cheat, or steal; not worthy of trust or belief: a dishonest person.
- proceeding from or exhibiting lack of honesty; fraudulent: a dishonest advertisement.
- not honest or fair; deceiving or fraudulent
late 14c., from Old French deshoneste (13c., Modern French déshonnête) “dishonorable, horrible, indecent,” perhaps from a Medieval Latin or Gallo-Romance compound of Latin dis- “not” (see dis-) + honestus “honorable” (see honest). The Latin formation was dehonestus. Related: Dishonestly.