Iniquity – wicked, immoral or unjust behaviour
In the nick (iniquity) is the best place for him because his behaviour was wicked and unjust.
Examples of iniquity in a sentence
Those who are quick to criticize the bad deeds of others should first look at their own acts of iniquity.
Because the dictator killed all his enemies, he was seen as a symbol of iniquity.
Dennis abandoned a life of iniquity and became a contributing member of his local church.