Synonyms: controvert, refute, rebut
Definition: prove to be false or incorrect
Similar words: confute, disprove
Definition: prove to be false
Usage: The physicist disproved his colleagues' theories
Definition: overthrow by argument, evidence, or proof
Usage: The speaker refuted his opponent's arguments
Similar words: disown, renounce, repudiate
Definition: cast off
Usage: She renounced her husband; The parents repudiated their son