Discredit

noun
the state of being held in low esteem
“your actions will bring discredit to your name”
Similar: disrepute
verb
cause to be distrusted or disbelieved
“The paper discredited the politician with its nasty commentary”
verb
reject as false; refuse to accept
Similar: disbelieve
verb
damage the reputation of
“This newspaper story discredits the politicians”
Similar: disgrace