14 entries under vacant topic. ×

7
immaterial(adjective, form, light, weak, negative)
6
ethereal(adjective, negative, heavenly, imperceptible, levity)
5
airy(adjective, light, negative, heavenly, levity)
5
insubstantial(adjective, light, weak, slight, negative)
5
shadowy(adjective, negative, heavenly, imperceptible)
2
imaginary(adjective, light, weak, slight, negative)
2
tenuous(light, weak, slight, negative, subtle)
1
chimerical(light, weak, slight, negative, flimsy)
1
dreamlike(negative, heavenly, fictional, incorporeal)
1
dreamy(negative, heavenly, fictional, incorporeal)
1
flimsy(adjective, light, weak, slight, negative)
1
illusory(light, weak, slight, negative, subtle)
1
unreal(light, weak, negative, imperceptible)
1
vaporous(adjective, negative, impulsive, unpredictable, imperceptible)
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APASmart Define. (2015). imponderable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/imponderable/thesaurus/synonyms
ChicagoSmart Define. 2015. "imponderable thesaurus" https://smartdefine.org/imponderable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, imponderable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/imponderable/thesaurus/synonyms>.
MLASmart Define. "imponderable thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/imponderable/thesaurus/synonyms>