\Pseu*don"y*mous\, a. [Gr. ?; pseydh`s false + ?, ?, a name: cf. F. pseudonyme. See {Pseudo-}, and {Name}.] Bearing a false or fictitious name; as, a pseudonymous work. -- {Pseu*don"y*mous*ly}, adv. -- {Pseu*don"y*mous*ness}, n.