108 entries under primary topic. ×
| ahead(adjective, head, beginning, opening, original) | |
| bottom(verb, adjective, support, base, important) | |
| constitutive(important, significant, original, serious, basic) | |
| grass-roots(adjective, important, significant, original, essential) | |
| indispensable(adjective, important, significant, original, serious) | |
| least(adjective, head, beginning, opening, original) | |
| maximum(adjective, top, excellent, fine, superior) | |
| meat-and-potatoes(adjective, important, significant, original, essential) | |
| nitty-gritty(adjective, original, basic, absolute, fundamental) | |
| nub(adjective, original, basic, absolute, fundamental) | |
| root(adjective, original, basic, fundamental) | |
| slightest(adjective, head, beginning, opening, original) | |
| smallest(adjective, head, beginning, opening, original) | |
| substratal(adjective, important, significant, original, essential) | |
| substrative(adjective, important, significant, original, essential) | |
| supporting(adjective, important, significant, original, essential) | |
| sustaining(adjective, important, significant, original, essential) | |
| theoretical(adjective, important, significant, original, essential) | |
| unequaled(adjective, bad, tough, top, perfect) | |
| unrivaled(adjective, bad, tough, top, excellent) |
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| APA | Smart Define. (2016). prime thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/prime/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "prime thesaurus" https://smartdefine.org/prime/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, prime thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/prime/thesaurus/synonyms>. |
| MLA | Smart Define. "prime thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/prime/thesaurus/synonyms> |