rule against inalienabilityglossary / RULE AGAINST INALIENABILITY rule against inalienability. The principle that property must not be made nontransferable. — Also termed rule against trusts of perpetual duration. Cf. RULE AGAINST PERPETUITIES. 词条贡献者 双语律师Virginia,国内知名法学院民商法专业,擅长翻译各类与公司与并购相关的法律文件。