138 entries under important topic. ×
| chips are down(expression, idiom, significant, historic) | |
| epochal(significant, historic) | |
| eternal | |
| eventful(significant, historic) | |
| grievous(adjective, great, heavy, significant) | |
| heavy number(expression, significant, historic) | |
| heavyweight(great, serious) | |
| important serious(expression, significant, historic) | |
| meat and potatoes(expression, idiom, significant) | |
| memorable(significant, historic) | |
| mere | |
| monumental | |
| overshadowing(great, serious) | |
| sacred | |
| sacrosanct | |
| top(great, serious, first, supreme) | |
| ugly(adjective, heavy, significant, acute) | |
| world-shaking |
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| APA | Smart Define. (2015). vital thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/vital/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "vital thesaurus" https://smartdefine.org/vital/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, vital thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/vital/thesaurus/synonyms>. |
| MLA | Smart Define. "vital thesaurus" 2 November 2015. Web. 26 September 2026. <https://smartdefine.org/vital/thesaurus/synonyms> |