45 entries under basic topic. ×
| needed(adjective, important, significant, essential, critical) | |
| principal(adjective, great, big, significant, substantial) | |
| decisive(adjective, severe, big, important, significant) | |
| all-important(adjective, important, significant, serious, essential) | |
| bottom-line(adjective, important, significant, essential, critical) | |
| cardinal(adjective, important, significant, essential, critical) | |
| coal-and-ice(important, essential, critical, fundamental) | |
| constitutive(important, essential, critical, fundamental) | |
| de rigueur(expression, adjective, significant, essential) | |
| expedient(adjective, significant, essential, vital) | |
| fundamental(adjective, important, significant, essential, critical) | |
| incumbent on(expression, adjective, significant, essential) | |
| key(important, significant, essential, critical) | |
| meat-and-potatoes(important, essential, critical, fundamental) | |
| name-of-the-game(important, essential, critical, fundamental) | |
| name of game(expression, adjective, idiom, significant, essential) | |
| nitty-gritty(important, essential, critical, fundamental) | |
| prerequisite(adjective, important, significant, essential, critical) | |
| quintessential(adjective, significant, essential, vital) | |
| specified(adjective, significant, essential, vital) |
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| APA | Smart Define. (2015). urgent thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/urgent/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "urgent thesaurus" https://smartdefine.org/urgent/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, urgent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/urgent/thesaurus/synonyms>. |
| MLA | Smart Define. "urgent thesaurus" 3 August 2015. Web. 20 September 2026. <https://smartdefine.org/urgent/thesaurus/synonyms> |