79 entries under essential topic. ×
| middle(adjective, important, significant, basic) | |
| substrative(adjective, important, significant, original) | |
| supporting(adjective, important, significant, original) | |
| sustaining(adjective, important, significant, original) | |
| theoretical(adjective, important, significant, original) | |
| bottom line(expression, important, significant, basic) | |
| categorical(adjective, fundamental, supreme) | |
| empyreal(adjective, fundamental, supreme) | |
| empyrean(adjective, fundamental, supreme) | |
| max(adjective, fundamental, supreme) | |
| maxi(adjective, fundamental, supreme) | |
| needful(adjective, original, basic, fundamental) | |
| sublime(adjective, fine, important, significant, grand) | |
| towering(adjective, fundamental, supreme) | |
| transcendental(adjective, fundamental, supreme) | |
| unequalable(adjective, fundamental, supreme) | |
| unmatchable(adjective, fundamental, supreme) | |
| unsurpassable(adjective, fundamental, supreme) | |
| utmost(adjective, top, fundamental, supreme) |
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| APA | Smart Define. (2016). primary thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/primary/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "primary thesaurus" https://smartdefine.org/primary/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, primary thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/primary/thesaurus/synonyms>. |
| MLA | Smart Define. "primary thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/primary/thesaurus/synonyms> |