- Definitions|2
- Thesaurus|772
- Abbreviations|0
28 entries under significant topic. ×
| evident(adjective, clear, see, plain, unusual) | |
| noticeable(adjective, clear, see, knowledge, plain) | |
| manifest(adjective, clear, see, plain, unusual) | |
| recognizable(adjective, clear, sensitive, substantial) | |
| sensible(adjective, knowledge, substantial, definite) | |
| memorable(adjective, unusual, important, famous, exceptional) | |
| clear-cut(adjective, see, substantial, definite) | |
| definite(substantial, obvious, considerable, noticeable) | |
| material(adjective, substantial, definite, considerable) | |
| red-letter(adjective, great, extraordinary, unusual, important) | |
| ascertainable(substantial, definite, considerable) | |
| extraordinary(adjective, great, unusual, important, famous) | |
| hot(adjective, great, extraordinary, unusual, important) | |
| major-league(adjective, great, extraordinary, unusual, important) | |
| meaningful(adjective, great, extraordinary, unusual, important) | |
| mind-blowing(adjective, great, unusual, important, exceptional) | |
| serious(adjective, great, extraordinary, unusual, important) | |
| super(adjective, great, unusual, important, exceptional) | |
| terrific(adjective, great, unusual, important, exceptional) | |
| considerable |
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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> |