| 1. | to injure the credit or reputation of; defame: an effort to discredit honest politicians. |
| 2. | to show to be undeserving of trust or belief; destroy confidence in: Later research discredited earlier theories. |
| 3. | to give no credence to; disbelieve: There was good reason to discredit the witness. |
| 4. | loss or lack of belief or confidence; disbelief; distrust: His theories met with general discredit. |
| 5. | loss or lack of repute or esteem; disrepute. |
| 6. | something that damages a good reputation: This behavior will be a discredit to your good name. |