DictionarycontradictConflict with a claim
verb

contradict

kahn-truh-DIKT/ˌkɑːntrəˈdɪkt/

To say or show the opposite of what is claimed or expected.

The woman contradicts the man's description of sunshine by insisting it is raining.

Contradict: adult man and woman debating the same weather, man speaks pictorial bubble showing sun, woman responds with pictorial bubble showing raincloud.
Etymology

The pieces mean “speak against”: to contradict people is to oppose their words with a statement asserting the opposite, rather than merely speaking against them in a general way.

In context

TV Crew Guy2:59
Well, maybe she's right. I don't know. I'm not going to contradict her.
Jackie Gleason talks bad habits, good health, 'The Honeymooners' 1985

More examples

  • Her actions contradict her promise to treat everyone fairly.
  • The witness contradicted himself during the interview.
  • These results contradict our expectations.

Forms

contradict · contradicts · contradicted · contradicting

contradiction noun — A statement or fact expressing the opposite.

contradictory adjective — Expressing opposing claims or incompatible facts.

Similar words

dispute
Challenges a claim without necessarily stating its exact opposite.
refute
Shows a claim is wrong, rather than merely opposing it.