34 entries under imperceptible topic. ×

11
ethereal(adjective, light, delicate, heavenly)
10
imponderable(adjective, knowledge, heavenly, subtle)
9
fine(adjective, light, delicate, little)
8
inappreciable(adjective, knowledge, littleness, unsubstantial)
7
airy(adjective, heavenly, insubstantial, unsubstantial)
7
shadowy(adjective, heavenly, unclear, subtle)
7
unreal(adjective, fake, abstract, theoretical)
7
vague(adjective, clear, definite, unclear, subtle)
6
insensible(adjective, knowledge, heavenly, subtle)
6
minute(light, fine, thin, small, loose)
6
unobservable(adjective, knowledge, unsubstantial, intangible)
5
abstract(adjective, insubstantial, theoretical, immaterial)
5
small(light, fine, thin, loose, little)
5
supernatural(adjective, abstract, heavenly, theoretical)
4
ghostly(adjective, heavenly, indistinguishable, unseen)
4
indistinct(adjective, unclear, subtle, unremarkable)
4
unnoticeable(adjective, knowledge)
3
indistinguishable(adjective, knowledge, unclear, subtle, indistinct)
3
wraithlike(adjective, heavenly, unseen, ghostly)
2
dim(adjective, unclear, insubstantial, indistinct)
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APASmart Define. (2015). impalpable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/impalpable/thesaurus/synonyms
ChicagoSmart Define. 2015. "impalpable thesaurus" https://smartdefine.org/impalpable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, impalpable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/impalpable/thesaurus/synonyms>.
MLASmart Define. "impalpable thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/impalpable/thesaurus/synonyms>