Titanian /taɪˈteɪniən/adjective 4noun 1forms 1 adjective4 •Of the TitansAs whom the fables name of monstrous size, / Titanian or earth-born, that warred on Jove, […] — 1674 •Of Titan, the largest moon of Saturn.if Trafton's (1972) detection of Titanian H₂ is correct, ... — 1974 •Of Titania, the largest moon of Uranus. •Of or relating to the Shakespearean faerie queen Titania noun1 •An inhabitant of Titan (the Saturnian moon) or of Titania formsTitanians