An iniquity is a really unfair or really immoral act. If you're a journalist, you may uncover a terrible iniquity that forces a famous politician to step down.

Iniquity comes from Latin, combining the prefix in-, “not,” and aequus, which means “equal” or “just.” So iniquity literally means “not just.” Iniquity can also be used to say that something lacks moral or spiritual principles. Some would call Las Vegas a “den of iniquity,” implying that sinful or wicked behavior occurs there. Others would just call it a vacation.

Definitions of iniquity
  1. noun
    absence of moral or spiritual values
    synonyms: dark, darkness, wickedness
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    disgusting wickedness and immorality
    type of:
    condition, status
    a state at a particular time
  2. noun
    morally objectionable behavior
    synonyms: evil, immorality, wickedness
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    devilry, deviltry
    wicked and cruel behavior
    foul play
    unfair or dishonest behavior (especially involving violence)
    irreverence, violation
    a disrespectful act
    sexual immorality
    the evil ascribed to sexual acts that violate social conventions
    blasphemy, desecration, profanation, sacrilege
    blasphemous behavior; the act of depriving something of its sacred character
    type of:
    evildoing, transgression
    the act of transgressing; the violation of a law or a duty or moral principle
  3. noun
    an unjust act
    synonyms: injustice, shabbiness, unfairness
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    type of:
    actus reus, misconduct, wrongdoing, wrongful conduct
    activity that transgresses moral or civil law
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