81 entries under abstract topic. ×

23
hypothetical(adjective, obscure, extraordinary, superior, uncertain)
17
speculative(adjective, wild, uncertain, unreasonable, useless)
16
conceptual(adjective, immaterial, topical)
16
conjectural(adjective, vague, imaginary, supposition)
15
ideal(adjective, fake, extraordinary, superior, false)
12
notional(adjective, fake, false, fantastic, intellectual)
9
transcendent(adjective, great, extraordinary, real, intellectual)
9
intellectual(adjective, obscure, extraordinary, fantastic, whole)
8
metaphysical(adjective, physical, moral, logical)
8
philosophical(adjective, moral, intellectual, supernatural)
7
unpractical(adjective, unreasonable, unviable)
7
unreal(adjective, fake, wild, unreasonable, fantastic)
7
unrealistic(adjective, wild, unreasonable, useless, practical)
5
transcendental(adjective, real, intellectual, supernatural)
4
quixotic(adjective, wild, unreasonable, useless, intellectual)
4
unearthly(adjective, intellectual, supernatural, spiritual)
3
bodiless(adjective, immaterial, abstruse, philosophical)
3
idealistic(adjective, wild, unreasonable, useless, absurd)
3
immaterial(adjective, fake, false, intellectual)
3
impalpable(adjective, fake, false, imaginary)
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APASmart Define. (2015). theoretical thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/theoretical/thesaurus/synonyms
ChicagoSmart Define. 2015. "theoretical thesaurus" https://smartdefine.org/theoretical/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, theoretical thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/theoretical/thesaurus/synonyms>.
MLASmart Define. "theoretical thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/theoretical/thesaurus/synonyms>