[From Latin post: after, and from English modernism.]
(epistemology) A radical form of relativism (similar to polylogism and opposed to scientism and objectivism) holding that there are no privileged viewpoints and that objective knowledge is effectively unattainable.
(aesthetics) A late 20th-century theory and practice of art that devalued representationalism and formalism in favor of a kind of eclecticism and experimentalism.