- Definitions|0
- Thesaurus|344
- Abbreviations|0
53 entries under special topic. ×
| rare(adjective, light, thin, unusual, exceptional) | |
| strange(adjective, light, thin, unusual, exceptional) | |
| uncommon(adjective, light, thin, extraordinary, unusual) | |
| exceptional(light, thin, extraordinary, unusual) | |
| extraordinary(light, thin, unusual, strange, exceptional) | |
| few(light, thin, unusual, rare) | |
| odd(extraordinary, unusual, exceptional, rare) | |
| remarkable(light, thin, extraordinary, unusual, exceptional) | |
| scarce(light, thin, unusual, rare) | |
| seldom(light, thin, unusual, rare) | |
| singular(light, thin, extraordinary, unusual, strange) | |
| sporadic(light, thin, unusual, rare) | |
| unimaginable(light, thin, doubtful, rare) | |
| unthinkable(light, thin, extraordinary, unusual, strange) | |
| unusual(light, thin, extraordinary, exceptional) | |
| unwonted(light, thin, extraordinary, unusual, strange) | |
| aberrant(unusual, odd, rare, bizarre) | |
| abnormal(unusual, odd, rare, bizarre) | |
| anomalous(unusual, rare) | |
| arcane(unusual, rare) |
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| APA | Smart Define. (2013). unheard of thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unheard_of/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "unheard of thesaurus" https://smartdefine.org/unheard_of/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2013, unheard of thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unheard_of/thesaurus/synonyms>. |
| MLA | Smart Define. "unheard of thesaurus" 19 May 2013. Web. 30 September 2026. <https://smartdefine.org/unheard_of/thesaurus/synonyms> |