discredit in WordNet English dictionary

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

1. the state of being held in low esteem
   "your actions will bring discredit to your name"; "because of the scandal the school has fallen into disrepute"
   disrepute  discredit