Difference between Ethereal and Supernal

What is the difference between Ethereal and Supernal?

Ethereal as an adjective is pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; otherworldly; as, ethereal space; ethereal regions. while Supernal as an adjective is pertaining to heaven or to the sky; celestial.

We hope you now know whether to use Ethereal or Supernal in your sentence.