nonperformanceglossary / NONPERFORMANCE nonperformance. Failure to discharge an obligation (esp. a contractual one). Cf. PERFORMANCE; MISPERFORMANCE. [Cases: Contracts 315. C.J.S. Contracts § 561.] 词条贡献者 双语律师Denise,知名法学院国际私法专业,擅长翻译各类与国际争议解决相关的法律文件。