mythical

US /ˈmɪθ.ɪ.kəl/
UK /ˈmɪθ.ɪ.kəl/
"mythical" picture
1.

existing only in ancient myths and legends; not real

:
Dragons are mythical creatures.
The lost city of Atlantis is a mythical place.
2.

relating to or based on myths

:
The story is based on mythical beliefs.
He studied various mythical traditions.