the person or those people, mentioned in a document, whose names and signatures appear at the end

(of a document) having signatures at the end or bottom / (of a person) having signed at the end of a document

plural of undersigned

present participle of undersign

Third-person singular simple present indicative form of undersign

To subscribe; sign one's name at the foot of.

plural of undersigner

One who undersigns.

present participle of undersignal

To signal inadequately.