The Collaborative International Dictionary
Supercelestial
Supercelestial \Su`per*ce*les"tial\, a. [Pref. super- + celestial: cf. L. supercaelestis.]
Situated above the firmament, or great vault of heaven.
--Waterland.Higher than celestial; superangelic.
Wiktionary
supercelestial
a. 1 Situated above the heavens. 2 Higher than celestial; superangelic