ADJ [ADJ n]（在法律文件末尾）署名的，签名的 On a legal document, the undersigned people are the ones who have signed their names at the bottom of the document. （在法律文件末尾）署名的，签名的 [law]
The undersigned buyers agree to pay a 5,000 pound deposit.
已签名的买主同意支付5,000英镑的订金。
The undersigned are the people who have signed a legal document.（法律文件的）签署人，签名者
...we the undersigned, all prominent doctors in our fields.