defiance

An act of defiance is when someone shows they won't obey or follow rules. They might rebel against authority.

When people use the word "defiance", it often means standing up for what you believe in and refusing to do something that goes against your values. For example, a protest can be an act of defiance, where people come together to show they don't agree with a decision or law. A teenager might exhibit defiance by refusing to wear school uniform if they feel it's unfair or too restrictive. In some cases, the word can also imply a sense of bravery or courage in standing up for something, even if it's unpopular.