ethereal

adjective
  1. extremely delicate, light, and seemingly not of this world; having a heavenly or spiritual quality.
    • The dancer's movements were so ethereal that the audience fell silent.
    • The ethereal glow of the moon lit up the garden.
    • The painting depicted an ethereal figure floating among the clouds.
    • Her voice had an ethereal quality that captivated everyone in the room.
    • Morning mist gave the landscape an ethereal beauty.
  2. relating to or deriving from the upper regions of the atmosphere or the celestial realm.
    • The aurora borealis created ethereal patterns in the night sky.
    • Ancient philosophers believed in an ethereal substance that filled the heavens.
    • Meteors are often described as ethereal visitors from outer space.
    • The ethereal realm was thought to be separate from the earthly world.