- Definitions|2
- Thesaurus|575
- Abbreviations|0
29 entries under unique topic. ×
| unusual(adjective, obscure, strange, exceptional, marvelous) | |
| strange(adjective, excellent, obscure, extraordinary, unusual) | |
| unknown(adjective, knowledge, obscure, strange, mysterious) | |
| exceptional(adjective, obscure, irregular) | |
| extraordinary(adjective, excellent, unusual, strange, superb) | |
| rare(adjective, obscure, extraordinary, strange, special) | |
| unprecedented(adjective, obscure, exceptional, original) | |
| nameless(adjective, knowledge, obscure, strange, unknown) | |
| unfamiliar(adjective, obscure, strange, exceptional, marvelous) | |
| singular(adjective, obscure) | |
| outlandish(adjective, obscure, strange, bizarre) | |
| remarkable(adjective, excellent, extraordinary, unusual, strange) | |
| unbelievable(adjective, obscure, extraordinary, strange, doubtful) | |
| unsung(adjective, obscure, new, remote, unknown) | |
| inconceivable(adjective, obscure, belief, exceptional, marvelous) | |
| novel(adjective, obscure) | |
| undiscovered(adjective, obscure, strange, new, remote) | |
| new(adjective, obscure, strange, exceptional, fantastic) | |
| phenomenal(adjective, excellent, extraordinary, unusual, strange) | |
| shocking(adjective, obscure) |
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| APA | Smart Define. (2015). unheard-of thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unheard-of/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unheard-of thesaurus" https://smartdefine.org/unheard-of/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, unheard-of thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unheard-of/thesaurus/synonyms>. |
| MLA | Smart Define. "unheard-of thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unheard-of/thesaurus/synonyms> |