- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
323 entries under adjective topic. ×
| portentous(importance, valuable, main, notable) | |
| considerable(importance, big, heavy, important) | |
| influential(importance, important, powerful, valuable) | |
| impressive(bad, strong, great, excellent) | |
| outstanding(excellent, extraordinary, superior, importance) | |
| solemn(importance, valuable, main, notable) | |
| historic(importance, important, main, extremely significant) | |
| unforgettable | |
| noteworthy(great, solid, extraordinary, big) | |
| grand(importance, valuable, main, notable) | |
| meaningful(good, clear, strong, great) | |
| eventful(bad, great, excellent, extraordinary) | |
| responsible(importance, valuable, duty, reliable) | |
| signal(great, solid, extraordinary, importance) | |
| big-league(importance, valuable, main, notable) | |
| decisive(great, extraordinary, big, important) | |
| earnest(importance, important, valuable, main) | |
| key(importance, valuable, main, notable) | |
| bigwig(importance, valuable, main, notable) | |
| chief(bad, great, excellent, superior) |
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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> |