forsworn
Definitions
Having rejected or renounced a previously held belief, cause, or person.
Having broken a formal oath or promise; perjured.
Examples
He felt like a forsworn knight after breaking the sacred oath he had made to his king.
The politician was accused of being forsworn for publicly denying the promises he had made during his campaign.
Synonyms
perjured renounced repudiated abjured disavowed recanted retracted