1. A reference to overwhelming a person in an argument: The teacher, Ms. Ashton, provided the most confutative evidence that Jeffrey had cheated on his examination regardless of how much the parents and the student denied the fact.
2. Descriptive of conclusively proving that something or someone is not accurate: Climate change deniers attempt to argue in a confutative manner that the melting of the icebergs is not because the oceans are warming; however, scientists are presenting more confutative evidence that such conditions are indeed influencing the results.