1
germinal
1
gradual(adjective, imperceptible)
1
granular
1
heavenly(incorporeal, nonmaterial)
1
illusory(light, weak, slight, negative, subtle)
1
immensurable
1
imponderous(adjective, levity)
1
inconspicuous(adjective, imperceptible)
1
indistinct(adjective, imperceptible)
1
insignificant(adjective, imperceptible)
1
metaphysical(light, weak, slight, heavenly, flimsy)
1
microcosmic
1
minute(adjective, imperceptible)
1
molecular
1
momentary(adjective, impulsive, unpredictable, subtle, imperceptible)
1
nonexistent(adjective, real, fictional)
1
nonsubstantial
1
obscure
1
occult
1
otherworldly
11 years ago|2.4k views|share |citing 
APASmart Define. (2015). imponderable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/imponderable/thesaurus/synonyms
ChicagoSmart Define. 2015. "imponderable thesaurus" https://smartdefine.org/imponderable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, imponderable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/imponderable/thesaurus/synonyms>.
MLASmart Define. "imponderable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/imponderable/thesaurus/synonyms>