68 entries under outstanding topic. ×
| significant(adjective, substantial, main, importance, valuable) | |
| momentous(adjective, significant, substantial, valuable, importance) | |
| noteworthy(adjective, worthy, characteristic, great) | |
| notable(adjective, noun, famous, exceptional) | |
| prominent(adjective, famous, eminent, characteristic) | |
| serious(adjective, substantial, crucial, great, importance) | |
| weighty(adjective, significant, strong, substantial, importance) | |
| eminent(adjective, great, excellent, famous, prominent) | |
| famous(adjective, great, exceptional, significant) | |
| distinguished(adjective, great, excellent, famous) | |
| leading(adjective, powerful, significant, essential, main) | |
| foremost(adjective, characteristic, significant, essential, main) | |
| great(adjective, excellent, exceptional, valuable, characteristic) | |
| signal(adjective, characteristic, great, extraordinary) | |
| powerful(adjective, strong, effective, influential, characteristic) | |
| remarkable(adjective, notable, importance, great) | |
| impressive(adjective, bad, strong, great, excellent) | |
| illustrious(adjective, famous, prominent, eminent, great) | |
| conspicuous(adjective, great, extraordinary, unusual, famous) | |
| grand(adjective, importance, notable, characteristic, great) |
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| APA | Smart Define. (2016). important thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/important/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "important thesaurus" https://smartdefine.org/important/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, important thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/important/thesaurus/synonyms>. |
| MLA | Smart Define. "important thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/important/thesaurus/synonyms> |