Superterranean is a antonym of subterranean.
As adjectives the difference between subterranean and superterranean
is that subterranean is below ground, under the earth, underground while superterranean is aboveground.
subterranean
English
Adjective
(
en adjective)
below ground, under the earth, underground
Synonyms
* subterraneous, subterrene, underground
Related terms
* terranean