- Definitions|2
- Thesaurus|772
- Abbreviations|0
59 entries under outstanding topic. ×
| enduring(great, extraordinary, notable, unforgettable) | |
| eventful(great, extraordinary, unusual, serious) | |
| extraordinary(adjective, great, unusual, important, famous) | |
| famous(great, extraordinary, prominent, notable) | |
| great(extraordinary, prominent, notable, distinguished) | |
| heavy(adjective, great, extraordinary, unusual, important) | |
| high-profile(adjective, great, unusual, important, famous) | |
| historic(great, extraordinary, notable, unforgettable) | |
| illustrious(great, extraordinary, prominent, notable) | |
| impressive(great, extraordinary, attractive, notable) | |
| indelible(great, extraordinary, notable, unforgettable) | |
| interesting(great, extraordinary, attractive, notable) | |
| lasting(great, extraordinary, notable, unforgettable) | |
| major-league(adjective, great, extraordinary, unusual, important) | |
| momentous(unusual, serious, prominent, notable) | |
| monumental(great, extraordinary, notable, unforgettable) | |
| nameable(adjective, great, unusual, important, famous) | |
| rememberable(great, extraordinary, notable, unforgettable) | |
| serious(adjective, great, extraordinary, unusual, important) | |
| signal(adjective, clear, great, see, extraordinary) |
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| APA | Smart Define. (2015). observable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/observable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "observable thesaurus" https://smartdefine.org/observable/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, observable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/observable/thesaurus/synonyms>. |
| MLA | Smart Define. "observable thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/observable/thesaurus/synonyms> |