repudiation

Noun

• the exposure of falseness or pretensions
  • the debunking of religion has been too successful
    

• refusal to acknowledge or pay a debt or honor a contract (especially by public authorities)
  • the repudiation of the debt by the city
    

• rejecting or disowning or disclaiming as invalid
  • Congressional repudiation of the treaty that the President had negotiated
    

Related words

• Synonyms: 
  debunking , renunciation