A philosophical viewpoint that suggests life is without objective meaning or value; the rejection of all religious and moral principles, often in the belief that life is meaningless.

The rejection of all political authority and existing social structures in favor of absolute individual freedom

A 19th-century Russian revolutionary movement that advocated for the radical destruction of all existing social and political institutions

An ideological viewpoint that negates or denies the value of historical legacies, national culture, or established historical facts