pseu·don·y·mous \(ˈ)sü|dänəməs\adjective alsopseu·do·nym·ic\|südən|imik\ Etymology:pseudonymous from Greek pseudōnymos; pseudonymic from French pseudonyme + English -ic : bearing or using a false or fictitious name : identified by a pseudonym < a pseudonymous work > < a pseudonymous author > also: being a pseudonym • pseu·don·y·mous·lyadverb • pseu·don·y·mous·nessnoun-es