empyreal UK /ɛmˈpɪɹɪəl/US /ɛmˈpɪɹ.i.əl/ adjective3 •Pertaining to the highest heaven or the empyrean.They that held the Stars of heaven vvere but rayes and flashing glimpses of the Empyreall light, through holes and perforations of the upper heaven, took of the natural shadovvs of stars, […] — 1658 •Of the sky or heavens. •Fiery, made of pure fire.