Mythologic \Myth`o*log"ic\, Mythological \Myth`o*log"ic*al\, a. [L. mythologicus: cf. F. mytholigique.] 1. Of or pertaining to mythology or to myths; as, mythological creatures. -- {Myth`o*log"ic*al*ly}, adv. [1913 Webster] 2. based on or told of in traditional stories; lacking factual basis or historical validity; mythical; fabulous. Syn: fabulous, mythic, mythical. [WordNet 1.5]