- To discredit is defined as to cast doubt on the truth of something or someone, or to damage a person's reputation.
When you tell everyone that your professor knows nothing and show evidence to prove it, this is an example of a time where you discredit your professor.
discredit definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- to reject as untrue; disbelieve
- to be a reason for disbelieving or distrusting; cast doubt on: their earlier lies discredit anything they may say
- to damage the credit or reputation of; disgrace
- absence or loss of belief or trust; disbelief; doubt
- damage to one's reputation; loss of respect or status; disgrace; dishonor
- something that causes disgrace or loss of status
discredit definition by American Heritage Dictionary
transitive verb dis·cred·it·ed, dis·cred·it·ing, dis·cred·its
- To damage in reputation; disgrace.
- To cause to be doubted or distrusted.
- To refuse to believe.
- Loss of or damage to one's reputation.
- Lack or loss of trust or belief; doubt.
- Something damaging to one's reputation or stature.