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 资深译员王漾,毕业于一所旨在培养高级翻译专业人才的翻译院校,擅长翻译各类与雇主商业秘密相关的法律文件。