supernal vs ethereal

supernal and ethereal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
supernal	No	Yes	No	No
ethereal	No	Yes	No	No

As adjectives, supernal and ethereal are synonyms defined as:

Other synonyms of supernal include celestial.

supernal (adjective)	ethereal (adjective)
being or coming from on high	of or containing or dissolved in ether
of heaven or the spirit	characterized by unusual lightness and delicacy
	of heaven or the spirit
	characterized by lightness and insubstantiality; as impalpable or intangible as air