- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
192 entries under significant topic. ×
| important(adjective, good, bad, strong, great) | |
| consequential(adjective, good, clear, importance, big) | |
| weighty(adjective, good, clear, strong, tough) | |
| remarkable(adjective, extraordinary, importance, important, lively) | |
| serious(adjective, good, great, severe, extraordinary) | |
| crucial(adjective, great, tough, severe, extraordinary) | |
| vital(adjective, severe, importance, big, heavy) | |
| notable(adjective, solid, extraordinary, importance, unusual) | |
| pivotal(adjective, feature, state, characteristic, important) | |
| essential(adjective, feature, state, characteristic, importance) | |
| memorable(adjective, great, extraordinary, superior, importance) | |
| substantial(adjective, strong, importance, big, heavy) | |
| critical(adjective, great, severe, extraordinary, big) | |
| major(adjective, bad, great, tough, severe) | |
| fateful(adjective, importance, important, valuable) | |
| material(noun, adjective, good, importance, big) | |
| big(adjective, good, importance, heavy, important) | |
| great(adjective, bad, excellent, importance, important) | |
| considerable(adjective, importance, big, heavy, important) | |
| impressive(adjective, bad, strong, great, excellent) |
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| APA | Smart Define. (2016). momentous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/momentous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "momentous thesaurus" https://smartdefine.org/momentous/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, momentous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/momentous/thesaurus/synonyms>. |
| MLA | Smart Define. "momentous thesaurus" 1 April 2016. Web. 30 September 2026. <https://smartdefine.org/momentous/thesaurus/synonyms> |