Anti-authoritarianism is a belief that people should not be forced to do things that they don't want to do. It means that people should be allowed to think and act in their own way, even if it goes against the rules of society or what authorities have put in place. People who believe in anti-authoritarianism don't like it when someone else tries to tell them how to think, what to believe, or what to do. They want to be allowed to make their own choices and be in control of their own lives.