unfaithful

/ʌnˈfeɪθfəl/
adjective
  1. Not faithful; especially, having a sexual relationship with someone other than one's spouse or partner.
    • She discovered that her husband had been unfaithful for years.
    • The movie tells the story of an unfaithful wife and its consequences.
    • Being unfaithful in a relationship often leads to a breakup.
  2. Not true to a promise, duty, or obligation; disloyal.
    • An unfaithful friend will gossip behind your back.
    • The soldier was punished for being unfaithful to his oath.
    • He was unfaithful to the company's values by stealing from them.
  3. Not accurate or true to the original; not exact.
    • Her memory of the event was unfaithful to what actually happened.
    • The translation was unfaithful to the original text.
    • An unfaithful copy of the painting had the wrong colors.
What does "unfaithful" mean? | whatsthatwordmean | whatsthatwordmean