121 entries under vital topic. ×
| bottom-line(adjective, important, original, essential, critical) | |
| constitutional(adjective, important, original, essential, basic) | |
| dangerous(great, severe, important, serious) | |
| determining(big, important, substantial, serious, valuable) | |
| dire(adjective, heavy, important, serious) | |
| elemental(adjective, important, original, essential, basic) | |
| elementary(adjective, important, original, essential, basic) | |
| esteemed(admired, imperative, respected) | |
| exigent(adjective, great, big, heavy, important) | |
| foremost(important, large, main, middle) | |
| foundational(adjective, important, original, essential, basic) | |
| front-page(big, important, substantial, valuable) | |
| grass-roots(adjective, important, original, essential, basic) | |
| hairy(serious, touching, exciting, stirring) | |
| hard(adjective, tough, severe, important, deep) | |
| hazardous(adjective, heavy, serious, acute) | |
| intrinsic(adjective, important, original, substantial, serious) | |
| mattering much(expression, big, substantial, valuable) | |
| meat-and-potatoes(adjective, important, original, essential, critical) | |
| needed(adjective, important, essential, critical, basic) |
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| APA | Smart Define. (2016). significant thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/significant/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, significant thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/significant/thesaurus/synonyms>. |
| MLA | Smart Define. "significant thesaurus" 4 March 2016. Web. 28 September 2026. <https://smartdefine.org/significant/thesaurus/synonyms> |