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1. Rejecting, disowning or disclaiming as invalid
   "Congressional repudiation of the treaty that the President had negotiated";
   - renunciation
    
2. Refusal to acknowledge or pay a debt or honour a contract (especially by public authorities)
   "the repudiation of the debt by the city"
    
3. The exposure of falseness or pretensions
   "the repudiation of religion has been too successful";
   - debunking

Derived forms: repudiations

Type of: exposure, refusal, rejection

Encyclopedia: Repudiation