drop dead dateglossary / DROP-DEAD DATE drop-dead date. The date by which performance is required as a condition. Cf. TIME-IS-OF-THE-ESSENCE CLAUSE. 词条贡献者 双语律师Natalie,毕业于法国一流的高级翻译学院,擅长翻译各类与监管与政府事务相关的法律文件。