102 entries under essential topic. ×
| constitutional(adjective, body, material, important, significant) | |
| mandatory(adjective, set, significant, basic) | |
| obligatory(adjective, important, significant, critical) | |
| burning(adjective, important, serious, critical) | |
| dominant(adjective, top, important, prime) | |
| elementary(adjective, top, important, significant, original) | |
| foremost(adjective, importance, big, important, significant) | |
| heavy(adjective, informal, big, important, significant) | |
| leading(adjective, top, importance, important, serious) | |
| of the essence(expression, adjective, idiom, important) | |
| overruling(adjective, importance, serious, basic) | |
| acute(adjective, severe, heavy, important, significant) | |
| all-important(adjective, important, significant, serious) | |
| called for(expression, necessary, obligatory, compulsory) | |
| first(adjective, top, important, significant, original) | |
| name(adjective, important, fundamental, renowned) | |
| pre-eminent(adjective, renowned, meritable, central) | |
| primitive(adjective, body, material, important, significant) | |
| quintessential(adjective, important, significant, basic) | |
| rudimentary(adjective, important, significant, original) |
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| APA | Smart Define. (2015). vital thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/vital/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "vital thesaurus" https://smartdefine.org/vital/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, vital thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/vital/thesaurus/synonyms>. |
| MLA | Smart Define. "vital thesaurus" 2 November 2015. Web. 27 September 2026. <https://smartdefine.org/vital/thesaurus/synonyms> |