It is two propositions so related to each other that if either is true the other is false and if either is false the other must be true. If you were to say to someone "I cannot speak" that would be contradictory, because you were speaking in saying that.
They do not contradict!
I hesitate to contradict you.
I could not contradict her arguments.
the suffix of contradict would probably be con.
Jack is now trying to contradict his own views on the subject.Do not contradict yourself on this issue now.
Don't contradict me, I am always right.
1.I had no evidence to contradict the theory.2.I didn't have any evidence that i could use to contradict the theory.
She grew increasingly annoyed as he began to contradict himself. She thought before she spoke, careful not to contradict her previous statements.
It would be impolite to contradict your teacher.
Values that contradict one another. Values that contradict one another.
of Contradict
The word contradict is a verb. The past tense is contradicts.