empyrean

/ɛmˈpaɪriən/
noun
  1. The highest heaven or the sky, especially in ancient and medieval cosmology, often thought of as the realm of pure fire or light.
    • Medieval poets imagined the empyrean as a place of eternal light beyond the stars.
    • He gazed up at the empyrean, feeling small beneath the vast canopy of space.
    • The telescope revealed galaxies far beyond our earthly empyrean.
Antonyms
adjective
  1. Of or relating to the highest heaven; celestial.
    • The empyrean dome of the cathedral was painted with scenes of angels.
    • The empyrean light of dawn broke over the mountains.
    • Her voice had an empyrean quality, as if it came from another world.
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