Nihilism is the philosophical doctrine suggesting the negation of one or more meaningful aspects of life. examples of Nihilism include:
-Existential Nihilism, which argues that life is without objective meaning, purpose or intrinsic value.
-Moral Nihilism, which argues that nothing is Moral or Immoral. This can lead to Amoralism.
-Epistemological nihilism, which is considered extreme skepticism, in that all knowledge is denied.
-Metaphysical Nihilism, which is the philosophical theory that there might not be any objects at all.
-Mereological Nihilism (alternatively Compositional Nihilism), which is the position that objects with proper 'parts' do not exist, in space or time.
-Political Nihilism, a branch of Nihilism that follows the characteristic Nihilistic rejection of non-proven or non-rationalized assertions.
-Ontological Nihilism, the belief that absolutely nothing actually exists.
Christian Nihilism may include the belief that without God, there is no morality or ethics, objective meaning or intrinsic value of life. this is essentially Existential Nihilism.