Definitions
1.nounEither of a pair of propositions, that cannot both be true or both be false.
2.adjectiveThat contradicts something, such as an argument.
3.adjectiveThat is itself a contradiction.
4.adjectiveThat is diametrically opposed to something.
5.adjectiveMutually exclusive.
6.adjectiveTending to contradict or oppose, contrarious.