ethereal

Something ethereal is airy and insubstantial, such as a ghostly figure at the top of the stairs. It might also be something delicate and light, like a singer’s ethereal voice.

Ethereal comes from the Greek word for ether, which is a drug that makes you feel light headed and, in larger doses, causes you to lose consciousness. An ethereal substance or sound is one that carries the feeling of ether––something you might see in a vision, that might strike you as heavenly or supernatural.

Primary Meanings of ethereal

1.
adj
characterized by lightness and insubstantiality; as impalpable or intangible as air
2.
adj
of or containing or dissolved in ether
Full Definitions of ethereal
1

adj characterized by lightness and insubstantiality; as impalpable or intangible as air

“physical rather than ethereal forms”
Synonyms:
aerial, aeriform, aery, airy
insubstantial, unreal, unsubstantial
lacking material form or substance; unreal

adj characterized by unusual lightness and delicacy

“this smallest and most ethereal of birds”
Synonyms:
gossamer
delicate
exquisitely fine and subtle and pleasing; susceptible to injury

adj of heaven or the spirit

ethereal melodies”
Synonyms:
celestial, supernal
heavenly
of or belonging to heaven or god
2

adj of or containing or dissolved in ether

ethereal solution”

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