Available Definitions:
1) a. - Affirming the contrary; implying a denial of what has been asserted; also, mutually contradicting; inconsistent.
2) a. - Opposing or opposed; repugnant.
3) n. - A proposition or thing which denies or opposes another; contrariety.
4) n. - propositions with the same terms, but opposed to each other both in quality and quantity.