Religious:
* Transgression: This implies breaking a law or rule, especially a religious one.
* Offense: This emphasizes the act of causing harm or displeasure to a higher power.
* Iniquity: This suggests a grave moral wrong or wickedness.
* Wickedness: Similar to "iniquity," but with a broader focus on evil actions and intentions.
* Vice: This refers to a particular moral flaw or bad habit.
General:
* Wrongdoing: This is a neutral term for any action that is considered morally wrong.
* Mistake: This emphasizes the unintentional aspect of a wrong action.
* Error: Similar to "mistake," but with a more specific focus on a flawed judgment or decision.
* Fault: This highlights the responsibility for a wrong action.
* Misconduct: This emphasizes the violation of rules or standards of behavior.
Informal:
* Slip-up: This is a casual term for a minor mistake.
* Blooper: This suggests a humorous or embarrassing mistake.
* Foul-up: This implies a serious mistake that leads to negative consequences.
The best word to use will depend on the specific situation and the tone you want to convey.