1. Fundamental beliefs, rules, or values that have been formally rejected, disowned, or cast aside
The political party repudiated the principles it had upheld for decades.
O partido político repudiou os princípios que havia mantido por décadas.
2. Core tenets or guidelines that have been explicitly refused or renounced
He repudiated the principles of his former mentor.
Ele repudiou os princípios de seu antigo mentor.