breach of covenantglossary / BREACH OF COVENANT breach of covenant. The violation of an express or implied promise, usu. in a contract, either to do or not to do an act. See COVENANT. [Cases: Contracts 312. C.J.S. Contracts § 561.] 词条贡献者 资深译员Michael,国内知名法学院法律翻译专业,擅长翻译各类与劳动诉讼相关的法律文件。