- Definitions|1
- Thesaurus|78
- Abbreviations|0
| unheard-of(adjective, obscure, unknown, unfamiliar, unique) | |
| unnamed | |
| undistinguished | |
| unknown(adjective, obscure, unfamiliar) | |
| minor | |
| obscure(adjective, hard, exceptional, complex, unknown) | |
| undiscovered(adjective, obscure, unknown, unfamiliar, untraveled) | |
| unsung(adjective, obscure, unknown, unfamiliar) | |
| abstruse(adjective, obscure, complex) | |
| anonymous | |
| arcane(adjective, obscure, complex, abstruse) | |
| blind | |
| cabalistic(adjective, obscure, complex, abstruse) | |
| close | |
| covered | |
| cryptic(adjective, obscure, complex, abstruse) | |
| deep(adjective, obscure, complex, abstruse) | |
| devious | |
| esoteric(adjective, obscure, complex, abstruse) | |
| hidden(adjective, obscure, complex, abstruse) |
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| APA | Smart Define. (2013). little-known thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/little-known/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "little-known thesaurus" https://smartdefine.org/little-known/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2013, little-known thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/little-known/thesaurus/synonyms>. |
| MLA | Smart Define. "little-known thesaurus" 28 June 2013. Web. 23 September 2026. <https://smartdefine.org/little-known/thesaurus/synonyms> |