romantasy UK /ɹəʊˈmæn.tə.si/US /ɹoʊˈmæn.tə.si/ noun2 •A genre of literature combining elements of both romance and fantasy.I want @lara_adrian 's book 7.! -.- sooo bad.! Best romantasy author ever.! (: — 2009 •A work in the genre; a romantic fantasy; a fantastical romance.Every hostess knows Blue Willow, the lovers fleeing across the bridge, the turtle doves and all the other romantasies . . . — 1928 formsromantasies