- Definitions|2
- Thesaurus|2.2k
- Abbreviations|0
| structural(adjective, material, important, natural, original) | |
| substantial | |
| theoretical(adjective, important, original, essential, basic) | |
| unadulterated(adjective, pure) | |
| underived(adjective, simple, rough, important, original) | |
| undivided(adjective, simple, whole, united) | |
| unified(adjective, simple, whole, united) | |
| united(adjective, simple, whole, united) | |
| virtual(adjective, essence, intrinsicality) | |
| white(adjective, pure) | |
| ABCs(noun, adjective, part, simple, plain) | |
| Spartan(adjective, severe) | |
| autochthonous(first, previous, initial) | |
| axiological(adjective, important, original, essential, basic) | |
| bed | |
| blunt(adjective, severe) | |
| bottom-line(adjective, important, significant, original, essential) | |
| bottom line(noun, expression, part, condition, essence) | |
| brass tacks(noun, expression, part, condition, essence) | |
| built-in(adjective, intrinsic) |
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| APA | Smart Define. (2016). fundamental thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fundamental/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fundamental thesaurus" https://smartdefine.org/fundamental/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, fundamental thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fundamental/thesaurus/synonyms>. |
| MLA | Smart Define. "fundamental thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/fundamental/thesaurus/synonyms> |