ETHEREAL
aeriform, aerial, airy, aery, ethereal
(adjective) characterized by lightness and insubstantiality; as impalpable or intangible as air; âfigures light and aeriform come unlooked for and melt awayâ- Thomas Carlyle; âaerial fanciesâ; âan airy apparitionâ; âphysical rather than ethereal formsâ
ethereal, gossamer
(adjective) characterized by unusual lightness and delicacy; âthis smallest and most ethereal of birdsâ; âgossamer shading through his playingâ
celestial, ethereal, supernal
(adjective) of heaven or the spirit; âcelestial peaceâ; âethereal melodiesâ; âthe supernal happiness of a quiet deathâ
ethereal
(adjective) of or containing or dissolved in ether; âethereal solutionâ
Source: WordNet® 3.1
Etymology
Adjective
ethereal (comparative more ethereal, superlative most ethereal)
Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; otherworldly.
Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterized by extreme delicacy, as form, manner, thought, etc.
Delicate, light and airy.
(chemistry) To do with ether.
Synonyms
• (pertaining to the hypothetical upper, purer air): aereous, mystical, transcendental; See also cosmic
• (consisting of ether): ethereous; See also gaseous, insubstantial, or subtle
• (delicate, light and airy): gossamer; See also fragile
• (to do with ether): ethereous, etheric, etherical
Source: Wiktionary
E*the"re*al, a.
1. Pertaining to the hypothetical upper, purer air, or to the higher
regions beyond the earth or beyond the atmosphere; celestial; as,
ethereal space; ethereal regions.
Go, heavenly guest, ethereal messenger. Milton.
2. Consisting of ether; hence, exceedingly light or airy; tenuous;
spiritlike; characterized by extreme delicacy, as form, manner,
thought, etc.
Vast chain of being, which from God began, Natures ethereal, human,
angel, man. Pope.
3. (Chem.)
Definition: Pertaining to, derived from, or resembling, ether; as, ethereal
salts. Ethereal oil. (Chem.) See Essential oil, under Essential.
– Ethereal oil of wine (Chem.), a heavy, yellow, oily liquid
consisting essentially of etherin, etherol, and ethyl sulphate. It is
the oily residuum left after etherification. Called also heavy oil of
wine (distinguished from oil of wine, or oenanthic ether).
– Ethereal salt (Chem.), a salt of some organic radical as a base;
an ester.
Source: Webster’s Unabridged Dictionary 1913 Edition