Philosophical movement characterized by the postmodern criticism and analysis of Western philosophy. Beginning as a critique of Continental philosophy, it was heavily influenced by phenomenology, structuralism and existentialism, and by the philosophers Friedrich Nietzsche and Martin Heidegger. It was also influenced to some degree by Ludwig Wittgenstein's later criticisms of analytic philosophy. Within postmodern philosophy, there are numerous interrelated fields, including deconstruction and several fields beginning with the prefix "post-", such as post-structuralism, post-Marxism, and post-feminism. In particular postmodern philosophy has spawned a huge literature of critical theory.