- Definitions|3
- Thesaurus|567
- Abbreviations|0
50 entries under primary topic. ×
| primordial(adjective, rough, important, significant, original) | |
| requisite(adjective, important, significant, original, essential) | |
| significant(adjective, important, original, essential, basic) | |
| structural(important, original, basic, vital) | |
| substrative(adjective, important, significant, original, essential) | |
| supporting(adjective, important, significant, original, essential) | |
| sustaining(adjective, important, significant, original, essential) | |
| theoretical(adjective, important, significant, original, essential) | |
| underived(adjective, rough, important, significant, original) | |
| core(adjective, original, essential, basic, fundamental) |
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| APA | Smart Define. (2015). underlying thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/underlying/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "underlying thesaurus" https://smartdefine.org/underlying/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, underlying thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/underlying/thesaurus/synonyms>. |
| MLA | Smart Define. "underlying thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/underlying/thesaurus/synonyms> |