undersignedWiktionary 原文英美构词拆解underunder-前缀signedsigned词干under-Beneath, under · (figurative) To go from one side to the other; to progress along a path词源说明From under- + signed.释义形容词adjective1of a documentHaving signatures at the end or bottom.2of a personHaving signed at the end of a document.名词noun1A person, mentioned in a document, whose name and signature