(now rare) Contradictory.

contradictory; inconsistent; opposing

In a contradictive manner.

The quality of being contradictive.

plural of contradiction in terms

plural of non-contradiction

plural of self-contradiction

A phrase or expression in which the component words contradict one another, often unintentionally, or are claimed to do so when seen from a particular point of view.

(logic) A statement that contains a contradiction, or a premise from which one could be derived

(mathematics, logic) Proof of a statement adduced by deriving a contradiction from the statement's negation.