Injustice is when someone is treated unfairly or when something happens that violates what's right. When a teacher punishes the wrong student for something they didn't do, that's an injustice. When someone works just as hard as their classmates but receives less credit, they experience injustice.

You'll see it in many contexts: a referee making a bad call that costs a team the game, a law that treats some people worse than others, or a bully taking someone's lunch money.

Injustice can be small and personal, like when your younger sibling breaks something but you get blamed. It can also be large and affect many people, like when an entire group faces discrimination or unfair laws. Throughout history, people have organized movements to fight major injustices and create fairer systems.

The feeling of injustice is powerful because humans have a strong sense of fairness. Even young children recognize when something is unfair. That feeling motivates people to speak up, correct mistakes, and work toward better solutions. Notice that injustice specifically involves situations where the rules of fairness are broken and people are treated wrongly or unequally.