noun
repudiation
rih-pyoo-dee-AY-shun/rɪˌpjuːdiˈeɪʃn/
Firm refusal to accept or acknowledge something.
Her statement is a firm repudiation of the committee's decision.

Etymology
Latin repudiatio meant rejection or refusal, while early English used the word for divorce. Its later use for disowning obligations carries that act of rejection into the broader formal sense.
In context
violent religious conversions of the indigenes of a continent demanding repudiation of their spiritual relations with phenomena
More examples
- The election results amount to a repudiation of the governor's policies.
- The group's repudiation of violence leaves no room for doubt.
- His repeated repudiations of the agreement make negotiations difficult.
Forms
repudiation · repudiations
repudiate verb — To reject or disown something firmly.
Similar words
- rejection
- Rejection is broader and need not involve a forceful disavowal.
- disavowal
- Disavowal specifically denies responsibility for or connection with something.