86 entries under theoretical topic. ×
| profound(adjective, hard, delicate, complex) | |
| supernatural(adjective, excellent, obscure, extraordinary, superior) | |
| analytical(adjective, vague, logical, risky) | |
| apocryphal(adjective, fantastic, pretend, unreal) | |
| dreamlike(adjective, fantastic, pretend, intellectual, unreal) | |
| dreamy(fantastic, spiritual, unreal, fictitious) | |
| eternal(excellent, obscure, extraordinary, superior, fantastic) | |
| formalistic(adjective, vague, intellectual, general, logical) | |
| fundamental(adjective, supernatural, spiritual, abstruse) | |
| high-flown(adjective, intellectual, supernatural, spiritual, unreal) | |
| imaginative(rational, fantastic, unreal, fictitious) | |
| insubstantial(vague, subtle, imaginary, imperceptible) | |
| jesuitic(abstruse, philosophical) | |
| learned(adjective, moral, logical, metaphysical) | |
| logical(adjective, moral, risky, metaphysical) | |
| mystical(hard, delicate, complex, complicated) | |
| nonconcrete(adjective, intellectual, conceptual) | |
| nonmaterial(abstruse, philosophical) | |
| nonphysical(abstruse, philosophical) | |
| numinous(abstruse, philosophical) |
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| APA | Smart Define. (2015). abstract thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/abstract/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "abstract thesaurus" https://smartdefine.org/abstract/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, abstract thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/abstract/thesaurus/synonyms>. |
| MLA | Smart Define. "abstract thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/abstract/thesaurus/synonyms> |