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1. The state of being held in low esteem
   "your actions will bring discredit to your name"
   - disrepute

1. Cause to be distrusted or disbelieved
   "The paper discredited the politician with its nasty commentary"
    
2. Damage the reputation of
   "This newspaper story discredits the politicians"
   - disgrace
    
3. Reject as false; refuse to accept
   - disbelieve

Derived forms: discredited, discredits, discrediting

Type of: belittle, brush aside, brush off, discount, dishonor [US], dishonour [Brit, Cdn], dismiss, disparage, disregard, ignore, pick at, push aside, reject