- 1discredit somebody/something to make people stop respecting someone or something The photos were deliberately taken to discredit the president. a discredited government/policy
- 2 discredit something to make people stop believing that something is true; to make something appear unlikely to be true These theories are now largely discredited among scientists. This new evidence discredits earlier findings.
NAmE//dɪsˈkrɛdət//Verb Forms present simple I / you / we / they discredit
he / she / it discredits
past simple discredited
-ing form discrediting