89 entries under significant topic. ×
| ugly(adjective, bad, tough, severe, heavy) | |
| all-important(adjective, important, serious, essential) | |
| basic(adjective, important, essential, critical) | |
| big(substantial, valuable, vital, imperative) | |
| big-league(vital, imperative) | |
| bottom-line(adjective, important, essential, critical) | |
| cardinal(adjective, important, essential, critical) | |
| central(adjective, important, critical, vital) | |
| considerable(big, substantial, valuable, vital) | |
| conspicuous(vital, imperative) | |
| de rigueur(expression, adjective, essential, basic) | |
| determining(big, important, substantial, serious) | |
| esteemed(vital, imperative) | |
| expedient(adjective, essential, basic, vital) | |
| extensive(big, substantial, valuable, vital) | |
| far-reaching(severe, big, substantial, valuable) | |
| front-page(big, substantial, valuable, vital) | |
| fundamental(adjective, important, essential, critical) | |
| great(adjective, firm, intense, big, passionate) | |
| grievous(adjective, hard, tough, severe, difficult) |
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| APA | Smart Define. (2015). urgent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/urgent/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "urgent thesaurus" https://smartdefine.org/urgent/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, urgent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/urgent/thesaurus/synonyms>. |
| MLA | Smart Define. "urgent thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/urgent/thesaurus/synonyms> |