- Definitions|2
- Thesaurus|772
- Abbreviations|0
| lasting(great, extraordinary, outstanding, notable, unforgettable) | |
| major-league(adjective, great, extraordinary, unusual, important) | |
| manifested(adjective, manifest) | |
| materialized(adjective, manifest) | |
| meaningful(adjective, great, extraordinary, unusual, important) | |
| mind-blowing(adjective, great, unusual, important, exceptional) | |
| momentous(unusual, outstanding, serious, prominent, notable) | |
| monumental(great, extraordinary, outstanding, notable, unforgettable) | |
| mundane | |
| murder(adjective, unusual, important, exceptional, remarkable) | |
| naked | |
| nameable(adjective, great, unusual, important, famous) | |
| observables | |
| observably | |
| ocular(visual, clear, apparent, noticeable, perceptible) | |
| open-and-shut | |
| optic(adjective, visual, chromatic, ocular, optical) | |
| ostensible | |
| outcropping | |
| outer |
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| APA | Smart Define. (2015). observable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/observable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "observable thesaurus" https://smartdefine.org/observable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, observable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/observable/thesaurus/synonyms>. |
| MLA | Smart Define. "observable thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/observable/thesaurus/synonyms> |