160 entries under special topic. ×
| inconceivable(adjective, obscure, extraordinary, unusual, belief) | |
| incredible(adjective, extraordinary, unusual, strange, exceptional) | |
| isolated(adjective, separate, simple, exceptional) | |
| noteworthy(adjective, great, excellent, solid, extraordinary) | |
| particular(adjective, separate, simple, extraordinary, superior) | |
| queer(adjective, extraordinary, unusual, strange, exceptional) | |
| seldom(adjective, adverb, slight, unusual, exceptional) | |
| unconventional(adjective, separate, unusual, strange, exceptional) | |
| abnormal(adjective, excellent, obscure, dark, extraordinary) | |
| anomalous(adjective, excellent, unusual, strange, usual) | |
| first-rate(adjective, cool, great, pleasant, excellent) | |
| notable(adjective, solid, extraordinary, unusual, exceptional) | |
| original(adjective, separate, simple, extraordinary, unusual) | |
| precious(adjective, excellent, fine, delicate, superior) | |
| uncustomary(adjective, excellent, solid, extraordinary, unusual) | |
| unimaginable(adjective, light, extraordinary, strange, exceptional) | |
| especial(adjective, separate, simple, superior, unusual) | |
| exclusive(adjective, separate, simple, excellent, extraordinary) | |
| good(adjective, great, pleasant, excellent, perfect) | |
| irregular(adjective, excellent, extraordinary, unusual, strange) |
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| APA | Smart Define. (2016). rare thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/rare/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "rare thesaurus" https://smartdefine.org/rare/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, rare thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/rare/thesaurus/synonyms>. |
| MLA | Smart Define. "rare thesaurus" 14 March 2016. Web. 29 September 2026. <https://smartdefine.org/rare/thesaurus/synonyms> |