41 entries under abstruse topic. ×
| abstract(adjective, moral, intellectual, supernatural, logical) | |
| theoretical(adjective, moral, intellectual, supernatural, abstract) | |
| profound(adjective, deep, thoughtful, intellectual, abstract) | |
| deep(adjective, sound, moral, abstract, theoretical) | |
| esoteric(adjective, sound, deep, thoughtful, abstract) | |
| intellectual(adjective, sound, deep, thoughtful, abstract) | |
| nonmaterial(abstract, theoretical) | |
| bodiless(abstract, theoretical) | |
| difficult(deep, thoughtful, abstract, theoretical, reflective) | |
| discarnate(abstract, theoretical) | |
| eternal(abstract, theoretical) | |
| fundamental(adjective, supernatural, abstract, spiritual, theoretical) | |
| high-flown(abstract, theoretical) | |
| ideal(intellectual, abstract, theoretical, academic) | |
| immaterial(intellectual, abstract, theoretical, nonconcrete) | |
| impalpable(abstract, theoretical) | |
| incorporeal(abstract, theoretical) | |
| insubstantial(abstract, theoretical) | |
| intangible(intellectual, abstract, theoretical, nonconcrete) | |
| jesuitic(abstract, theoretical) |
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| APA | Smart Define. (2015). philosophical thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/philosophical/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "philosophical thesaurus" https://smartdefine.org/philosophical/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, philosophical thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/philosophical/thesaurus/synonyms>. |
| MLA | Smart Define. "philosophical thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/philosophical/thesaurus/synonyms> |