irritant clauseglossary / IRRITANT CLAUSE irritant clause. Civil law. A deed term providing that if the deed’s holder performs an act specifically prohibited by the deed, the act or deed is automatically nullified. 词条贡献者 资深译员文楷,毕业于亚洲一流的高级翻译学院,擅长翻译各类与电信、媒体和技术相关的法律文件。