| noun | the apparent surface of the imaginary sphere on which celestial bodies appear to be projected |
| adjective | of or relating to the sky or heavens “the empyrean sphere” |
| adjective | inspiring awe; - M.S.Dworkin; - Hamilton Basso “well-meaning ineptitude that rises to empyreal absurdity” |
| empyreal | adjective | of or relating to the sky or heavens |
| firmamental | adjective | relating to the firmament or upper regions |
| empyrean | noun | the apparent surface of the imaginary sphere on which celestial bodies appear to be projected |