repudiate

verb

1. 1

   refuse to acknowledge, ratify, or recognize as valid

   The woman repudiated the divorce settlement

2. 2

   cast off

   She renounced her husband

   The parents repudiated their son

3. 3

   reject as untrue, unfounded, or unjust

   She repudiated the accusations

4. 4

   refuse to recognize or pay

   repudiate a debt