Immoral means not morally good or right, especially in a way that is considered wrong or evil by most people or by a particular moral code.

Simple definition

  • Immoral = against accepted ideas of right and wrong.
  • It describes actions or people that are considered morally wrong , evil , unjust , dishonest , or otherwise against shared moral standards.

Example:

  • Lying to harm someone on purpose is often called immoral because it breaks basic moral rules about honesty and fairness.

How it differs from similar words

  • Moral : in line with what is right and good.
  • Immoral : knowingly goes against what is considered right; morally evil or wrong.
  • Amoral : not guided by any sense of right or wrong at all (no moral framework), which is different from choosing to do wrong.

So an immoral person usually knows the rules but breaks them anyway, while an amoral person may not care about moral rules at all.

Common ways “immoral” is used

People often call things immoral when they:

  • Hurt others on purpose (violence, exploitation, betrayal).
  • Break widely accepted moral or social rules (stealing, serious lying, cheating).
  • Go against a community’s or religion’s moral teachings or “divine law.”
  • In some contexts, refer to not following accepted sexual behavior standards (for example, “immoral behavior” in older or more conservative usage).

Note: What counts as immoral can change across cultures, religions, and time periods, but the core idea is “seriously wrong by a moral standard.”

Quick HTML table (meaning at a glance)

[5][7] [7][9][1][3][5] [3]
Word Meaning (short) Key idea
moral In line with what is right or good.Follows moral rules.
immoral Not morally good or right; morally evil or wrong.Breaks accepted moral rules.
amoral Without concern for right or wrong; outside a moral framework.No use of moral rules at all.

Mini story example

Imagine a coworker who knows the company rule is “never take clients’ money for yourself,” and they secretly take that money anyway.

  • They understand the rule and that it’s wrong, but do it on purpose for personal gain.
  • Most people would describe that as immoral behavior, because it is dishonest, unfair, and harms others.

TL;DR:
“Immoral” means knowingly doing what is considered morally wrong or evil according to shared moral rules or a particular moral code.