Nihilism
When Nietzsche asks the question "What does nihilism mean?", his answer is that "the highest values  themselves." He says nihilism is when someone thinks that what  exist is not what  exist. For example, some people want a perfect world to exist instead of the real world. But nihilism isn't just about wanting it all gone — Nietzsche says that nihilism is also trying to attack and destroy everything that exists.