45 entries under chief topic. ×
| big(adjective, great, significant, substantial, large) | |
| capital(adjective, important, serious, essential, critical) | |
| core(original, fundamental, key, main) | |
| head(key, foremost) | |
| in demand(expression, adjective, idiom, basic, main) | |
| relevant(adjective, clear, sound, reasonable, sensible) | |
| grave(adjective, great, big, important, significant) | |
| highest(adjective, key, foremost) | |
| leading(adjective, important, serious, capital, essential) | |
| major(adjective, important, significant, original, essential) | |
| meaningful(adjective, big, important, significant, substantial) | |
| particular(key, foremost) | |
| special(adjective, key, foremost) | |
| substantial(adjective, great, big, significant, large) | |
| supreme(adjective, key, foremost) | |
| valuable(adjective, great, big, significant, substantial) | |
| controlling(key, foremost) | |
| focal(key, foremost) | |
| outstanding(key, foremost) | |
| predominant(basic, key, main, foremost) |
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| APA | Smart Define. (2015). necessary thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, necessary thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>. |
| MLA | Smart Define. "necessary thesaurus" 2 November 2015. Web. 23 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms> |