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 译者亚明,毕业于国内一流的高级翻译学院,擅长翻译各种与网络安全、隐私和数据保护相关的法律文件。