signature loanglossary / signature loan An unsecured loan based solely on the borrower’s promise or signature.• To obtain such a loan, the borrower must usu. be highly creditworthy. 词条贡献者 资深译员Chris,毕业于一所培养高级翻译以及跨文化事务专家的精英大学,专注翻译各种与卫星及航天技术诉讼有关的法律文件。