121 entries under vital topic. ×
| important(adjective, good, strong, great, tough) | |
| substantial(adjective, strong, importance, big, heavy) | |
| momentous(adjective, good, clear, strong, great) | |
| serious(adjective, good, great, extraordinary, importance) | |
| considerable(adjective, clear, importance, big, heavy) | |
| weighty(adjective, good, clear, strong, great) | |
| consequential(adjective, good, clear, importance, big) | |
| critical(adjective, great, extraordinary, big, heavy) | |
| crucial(adjective, great, tough, severe, extraordinary) | |
| meaningful(adjective, good, clear, strong, show) | |
| big(adjective, good, importance, heavy, important) | |
| grave(adjective, great, tough, severe, importance) | |
| major(adjective, great, tough, severe, superior) | |
| material(adjective, good, appropriate, importance, big) | |
| great(adjective, importance, important, famous, outstanding) | |
| influential(adjective, good, clear, great, importance) | |
| relevant(adjective, clear, appropriate, importance, big) | |
| signal(noun, adjective, clear, mark, great) | |
| chief(adjective, superior, big, unusual, important) | |
| essential(adjective, importance, big, important, original) |
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| APA | Smart Define. (2016). significant thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/significant/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, significant thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/significant/thesaurus/synonyms>. |
| MLA | Smart Define. "significant thesaurus" 4 March 2016. Web. 26 September 2026. <https://smartdefine.org/significant/thesaurus/synonyms> |