1. One who undersigns.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• undersined,
• undersigner,
• udnersigned,
• undersinged,
• undersied,
• undersighned,
• undepigted,
• undesaigned,
• undesignded,
• undesignd,
• undesigned,
• undiersified,
• undreigned,
• unsersigned,
• underrsigned,
• undersigne,
• undersgined,
• unresigneds,
• underdrianed,
• under-signer

• undergrad,
• underboss,
• underdown,
• undersealed,
• underhung,
• undergird,
• undermanned,
• unadorned,
• underspend,
• underprice,
• underling,
• undersized,
• undergraduate,
• undershot,
• underlie,
• underside,
• understand,
• understate,
• underpart,
• underpass,
• underage,
• undermine,
• undersign,
• underspent,
• underdone,
• underhanded,
• underseller,
• underslung,
• undertone,
• undercoated,
• unaddressed,
• undersoil,
• underwing,
• underwear,
• understaffed,
• underdog,
• understudy,
• undersexed,
• under arms,
• undersell,
• understated,
• undersea,
• undergrow,
• underline,
• under fire,
• underwrite,
• under wraps,
• undercarriage,
• underived,
• underneath,
• underlying,
• understood,
• underpin,
• underground,
• underscore,
• underbred,
• underseal,
• underworld,
• underfur,
• undersize,
• undersurface,
• underfed,
• understanding.

The adjective form of the word "undersigned" is "undersigning".

The plural of the "undersigned" can be the "undersigned".

The singular of the "undersigned" can be the "undersigned".