Ethereal
adjective
characterized by lightness and insubstantiality; as impalpable or intangible as air; - Thomas Carlyle
“figures light and aeriform come unlooked for and melt away”
Similar: aeriform, aerial, airy, aery
adjective
characterized by unusual lightness and delicacy
“this smallest and most ethereal of birds”
Similar: gossamer
adjective
of or containing or dissolved in ether
“ethereal solution”
adjective
of heaven or the spirit
“celestial peace”
Similar: celestial, supernal
Word family
etherealness · ethereality · ethereally