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 双语律师Simon,毕业于亚洲一流的高级翻译学院,擅长翻译涉及金属和矿业领域的法律文件。