- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
47 entries under theoretical topic. ×
| recondite(adjective, sound, easy, evil, sharp) | |
| deep(adjective, hard, sound, easy, evil) | |
| difficult(adjective, hard, obscure, strange, uncertain) | |
| profound(adjective, easy, obscure, difficult, heavy) | |
| esoteric(adjective, hard, sound, easy, evil) | |
| abstract(adjective, hard, obscure, difficult, complex) | |
| mystical(adjective, hard, evil, obscure, dark) | |
| transcendental(strange, intellectual, unknown, abstract) | |
| hypothetical(intellectual, abstract, insubstantial, imperceptible) | |
| ideal(intellectual, abstract, philosophical, nonconcrete) | |
| bodiless(abstract, philosophical) | |
| discarnate(abstract, philosophical) | |
| eternal(deep, abstract, profound, philosophical) | |
| fundamental(abstract, philosophical) | |
| high-flown(abstract, philosophical) | |
| immaterial(intellectual, abstract, insubstantial, imperceptible) | |
| impalpable(abstract, insubstantial, imperceptible, philosophical) | |
| incorporeal(abstract, insubstantial, imperceptible, philosophical) | |
| insubstantial(abstract, imperceptible, philosophical, incorporeal) | |
| intangible(adjective, intellectual, abstract, indefinite, insubstantial) |
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| APA | Smart Define. (2015). abstruse thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, abstruse thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>. |
| MLA | Smart Define. "abstruse thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms> |