promissory restraintglossary / PROMISSORY RESTRAINT promissory restraint. An attempt by an otherwise effective conveyance or contract to discourage a later conveyance by imposing contractual liability on anyone who makes a later conveyance. 词条贡献者 双语律师李明,国际知名法学院法律专业,擅长翻译各类与政府监管相关的法律文件。