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

n absence of moral or spiritual values

dark, darkness, wickedness
disgusting wickedness and immorality
Type of:
condition, status
a state at a particular time

n morally objectionable behavior

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

n an unjust act

injustice, shabbiness, unfairness
Type of:
actus reus, misconduct, wrongdoing, wrongful conduct
activity that transgresses moral or civil law

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