n. 1. a state of relative contradiction between two things or factors. 2. German philosopher Immanuel Kant (1724-1804), describes it as a contradiction between two a priori propositions in metaphysics, each of which can be supported by equally valid proofs - meaning two valid explanations for the same phenomena. Kant cited examples of antinomies as part of his argument against speculative metaphysics. His view favored his own position that the only world one can have knowledge of is the world of natural phenomena.
ANTINOMY: "An antimony means that there are two valid explanations for the same thing, and that the two explanations oppose each other. "