Synonyms for Never-never land:

n.

fairyland, the Promised Land, arcadia, the Bates Motel, land, el dorado, dystopia, hades. •never-never land (noun)
dreamworld, dreamland.
•utopia (noun)
dreamland, fairyland, dreamworld, arcadia.

Other synonyms:

fairyland, el dorado, the Promised Land, the Bates Motel, arcadia. hades. land. •Other relevant words:
fairyland.