7
ethereal(adjective, unreasonable, inappropriate, absurd, heavenly)
7
ghastly(adjective, dull, light, soft, poor)
7
unsubstantial(adjective, dull, light, soft, poor)
6
metaphysical(adjective, obscure, dark, mysterious, supernatural)
6
transcendental(obscure, dark, mysterious, supernatural, heavenly)
6
wraithlike(adjective, shocking, heavenly, airy, distressing)
5
chimerical(adjective, unsubstantial)
5
dreamy(heavenly, unreal, theoretical, speculative, incorporeal)
5
impalpable(adjective, heavenly, unsubstantial, incorporeal, nonmaterial)
5
incorporeal(adjective, heavenly, nonmaterial)
5
mysterious(adjective, unusual, wonderful, marvelous, charming)
5
visionary(adjective, unsubstantiality, inexistence)
4
haunted(adjective, unusual, wonderful, marvelous, charming)
4
pale(adjective, light, thin, effect, shadowy)
4
airy(heavenly, incorporeal, nonmaterial, unsubstantiality)
4
deathlike(adjective, dull, light, soft, poor)
4
demonic(adjective, supernatural, demon, ghostly)
4
fiendish(adjective, unusual, wonderful, marvelous, charming)
3
abstract
3
chromatic(adjective, colorful)
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APASmart Define. (2015). spectral thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/spectral/thesaurus/synonyms
ChicagoSmart Define. 2015. "spectral thesaurus" https://smartdefine.org/spectral/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, spectral thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/spectral/thesaurus/synonyms>.
MLASmart Define. "spectral thesaurus" 15 July 2015. Web. 23 September 2026. <https://smartdefine.org/spectral/thesaurus/synonyms>