86 entries under theoretical topic. ×
| indefinite(adjective, intellectual, unreal, insubstantial) | |
| unreal(adjective, wild, rational, unreasonable, fantastic) | |
| complex(adjective, hard, obscure, delicate, intellectual) | |
| difficult(adjective, hard, obscure, tricky, complicated) | |
| general(adjective, vague, intellectual, logical, imaginary) | |
| incorporeal(adjective, fantastic, spiritual, insubstantial) | |
| recondite(adjective, obscure, intellectual, abstruse) | |
| bodiless(adjective, immaterial, abstruse, philosophical) | |
| esoteric(adjective, hard, obscure, delicate, complex) | |
| fictitious(adjective, fantastic, pretend, intellectual, unreal) | |
| immaterial(adjective, rational, intellectual, supernatural, spiritual) | |
| rational(adjective, moral, logical, cerebral) | |
| spiritual(adjective, great, rational, fantastic, beautiful) | |
| unearthly(adjective, fantastic, intellectual, supernatural, spiritual) | |
| unsubstantial(adjective, fantastic, unreal, insubstantial) | |
| discarnate(abstruse, philosophical) | |
| fancied(adjective, fantastic, pretend, imaginary, unreal) | |
| ideological(adjective, perfect, rational, ideal, risky) | |
| imagined(adjective, fantastic, imaginary, unreal) | |
| made-up(adjective, fantastic, imaginary, unreal) |
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| APA | Smart Define. (2015). abstract thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/abstract/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "abstract thesaurus" https://smartdefine.org/abstract/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, abstract thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/abstract/thesaurus/synonyms>. |
| MLA | Smart Define. "abstract thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/abstract/thesaurus/synonyms> |