Antinomy

Webster's Dictionary

(1): (n.) An opposing law or rule of any kind.

(2): (n.) A contradiction or incompatibility of thought or language; - in the Kantian philosophy, such a contradiction as arises from the attempt to apply to the ideas of the reason, relations or attributes which are appropriate only to the facts or the concepts of experience.

(3): (n.) Opposition of one law or rule to another law or rule.

The Nuttall Encyclopedia

In the transcendental philosophy the contradiction which arises when we carry the categories of the understanding above experience and apply them to the sphere of that which transcends it.