contradict
US /ˌkɑːn.trəˈdɪkt/
UK /ˌkɑːn.trəˈdɪkt/

1.
contradecir, desmentir
deny the truth of a statement, especially by asserting the opposite
:
•
The witness's testimony seemed to contradict the evidence.
El testimonio del testigo parecía contradecir la evidencia.
•
His actions often contradict his words.
Sus acciones a menudo contradicen sus palabras.
2.
contradecir, refutar
assert the opposite of a statement made by (someone)
:
•
He would often contradict his parents just for the sake of argument.
A menudo contradecía a sus padres solo por discutir.
•
It's rude to contradict someone directly in a meeting.
Es de mala educación contradecir a alguien directamente en una reunión.