repudiation

nouns

rejecting or disowning or disclaiming as invalid
"Congressional repudiation of the treaty that the President had negotiated"
is derived from
refusal to acknowledge or pay a debt or honor a contract (especially by public authorities)
"the repudiation of the debt by the city"
is derived from
is derived from
is a type of (narrower)
the act of refusing
the exposure of falseness or pretensions
"the debunking of religion has been too successful"
is derived from