1. to cause someone or something to lose credibility or respect; to damage the reputation of
Usage: third person singular present tense
2. to show that something is not true or reliable; to disprove
Usage: third person singular present tense

Examples

• The scandal discredits the politician’s claims about transparency.
• New evidence discredits the original theory about the crime.
• His poor behavior discredits the entire organization.
• The study discredits previous research on the topic.
• False accusations often discredit legitimate complaints.
• The leaked documents discredit the company’s public statements.
• Her testimony discredits the witness’s account of events.