46 entries under theoretical topic. ×

24
immaterial(adjective, form, light, weak, slight)
23
impalpable(adjective, knowledge, abstract, heavenly, indefinite)
17
incorporeal(adjective, abstract, heavenly, indefinite)
17
unsubstantial(adjective, gentle, abstract, heavenly, indefinite)
13
nonphysical(adjective, abstract, heavenly, immaterial)
12
unreal(adjective, gentle, fake, abstract, indefinite)
10
insubstantial(adjective, light, weak, slight, fake)
10
spiritual(adjective, abstract, heavenly, religious)
9
abstract(adjective, intellectual, supernatural, indefinite, spiritual)
6
bodiless(adjective, abstract, heavenly, immaterial)
5
supernatural(adjective, abstract, heavenly, imperceptible)
5
unearthly(adjective, abstract, heavenly, immaterial)
4
nonmaterial(abstract, heavenly, religious, sacred)
3
hypothetical(adjective, intellectual, abstract, indefinite, insubstantial)
2
abstruse(adjective, intellectual, abstract, indefinite, insubstantial)
2
discarnate(abstract, heavenly, spiritual, abstruse)
2
ideal(adjective, fake, false, fantastic, intellectual)
2
unfleshly(abstract, heavenly, religious, abstruse)
2
unphysical(abstract, religious, sacred, abstruse)
1
deep(intellectual, abstract, abstruse, philosophical)
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APASmart Define. (2015). intangible thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/intangible/thesaurus/synonyms
ChicagoSmart Define. 2015. "intangible thesaurus" https://smartdefine.org/intangible/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, intangible thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/intangible/thesaurus/synonyms>.
MLASmart Define. "intangible thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/intangible/thesaurus/synonyms>