Nihilism is a family of views that reject certain aspects of existence. Different forms of nihilism deny different features of reality, ranging from the meaning of life and morality to political institutions and the possibility of objective knowledge. These views span various branches of philosophy, including ethics, value theory, epistemology, and metaphysics. Nihilism is often characterized as a broad cultural phenomenon or historical movement that pervades modernity in the Western world. Existential nihilism asserts that life is inherently meaningless and lacks a higher purpose.
https://en.wikipedia.org/wiki/Nihilism