Source : Webster's Revised Unabridged Dictionary (1913)

Mythic \Myth"ic\, Mythical \Myth"ic*al\, a. [L. mythicus, Gr. ?.
   See {Myth}.]
   Of or relating to myths; described in a myth; of the nature
   of a myth; fabulous; imaginary; fanciful. -- {Myth"ic*al*ly},
   adv.

         The mythic turf where danced the nymphs. --Mrs.
                                                  Browning.

         Hengist and Horsa, Vortigern and Rowena, Arthur and
         Mordred, are mythical persons, whose very existence may
         be questioned.                           --Macaulay.

Source : WordNet®

mythic
     adj 1: relating to or having the nature of myth; "a novel of almost
            mythic consequence"
     2: based on or told of in traditional stories; lacking factual
        basis or historical validity; "mythical centaurs"; "the
        fabulous unicorn" [syn: {fabulous}, {mythical}, {mythologic},
         {mythological}]