repudiate

Verb

• reject as untrue, unfounded, or unjust
  • She repudiated the accusations
    

• refuse to recognize or pay
  • repudiate a debt
    

• refuse to acknowledge, ratify, or recognize as valid
  • The woman repudiated the divorce settlement
    

• cast off
  • She renounced her husband
    
  • The parents repudiated their son
    

Related words

• Synonyms: 
  disown , renounce