92 entries under primary topic. ×
| unparalleled(adjective, bad, tough, top, perfect) | |
| vital(adjective, top, important, significant, original) | |
| axiological(important, significant, original, basic, vital) | |
| axiomatic(important, significant, original, basic, vital) | |
| basal(important, original, serious, basic, prime) | |
| bottom-line(important, significant, original, basic, vital) | |
| constitutional(adjective, top, important, significant, original) | |
| controlling(adjective, outstanding, essential, prominent, prime) | |
| crucial(adjective, important, significant, original, basic) | |
| foundational(important, significant, opening, original, basic) | |
| grass-roots(important, significant, original, basic, vital) | |
| integral(important, significant, original, basic, vital) | |
| intrinsic(adjective, important, significant, original, basic) | |
| maximum(adjective, excellent, fine, outstanding, prominent) | |
| meat-and-potatoes(important, significant, original, basic, vital) | |
| most important(expression, adjective, top, outstanding, prominent) | |
| necessary(adjective, important, significant, original, basic) | |
| radical(important, original, sophisticated, basic, vital) | |
| requisite(adjective, important, significant, original, basic) | |
| structural(important, significant, original, basic, vital) |
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| APA | Smart Define. (2016). first thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/first/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "first thesaurus" https://smartdefine.org/first/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, first thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/first/thesaurus/synonyms>. |
| MLA | Smart Define. "first thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/first/thesaurus/synonyms> |