80 entries under adjective topic. ×

20
intangible(knowledge, little, abstract, heavenly)
16
imperceptible(hard, knowledge, fine, faint)
13
unsubstantial(little, abstract, heavenly, theoretical)
12
immaterial(form, false, abstract, heavenly)
11
ethereal(light, delicate, heavenly, imperceptible)
10
imponderable(knowledge, heavenly, subtle, imperceptible)
10
incorporeal(abstract, heavenly, insubstantial, theoretical)
10
powdery(light, fine, thin, small)
9
fine(light, delicate, little, imperceptible)
9
insubstantial(fake, false, abstract, fanciful)
9
unperceivable(unsubstantial, intangible)
8
inappreciable(knowledge, imperceptible, littleness, unsubstantial)
7
airy(heavenly, insubstantial, imperceptible, unsubstantial)
7
elusive
7
invisible(knowledge, hidden, unable, littleness)
7
shadowy(heavenly, unclear, subtle, imperceptible)
7
spiritual(abstract, heavenly, theoretical, immaterial)
7
unreal(fake, abstract, theoretical, imperceptible)
7
vague(clear, definite, unclear, subtle)
6
bodiless(abstract, heavenly, theoretical, immaterial)
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APASmart Define. (2015). impalpable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impalpable/thesaurus/synonyms
ChicagoSmart Define. 2015. "impalpable thesaurus" https://smartdefine.org/impalpable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, impalpable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impalpable/thesaurus/synonyms>.
MLASmart Define. "impalpable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/impalpable/thesaurus/synonyms>