- Definitions|1
- Thesaurus|1.2k
- Abbreviations|0
| unheard | |
| unidentified | |
| uninvestigated | |
| unknowing | |
| unlikely(adjective, extraordinary, strange, unbelievable, implausible) | |
| unnatural(adjective, obscure, dark, superior, strange) | |
| unperceived | |
| unplumbed | |
| unreadable(adjective, ambiguous, incoherent, unfathomable, incomprehensible) | |
| unsearchable | |
| unsubstantial(adjective, extraordinary, strange, unbelievable, implausible) | |
| unsuspected | |
| unthinkable(adjective, extraordinary, strange, unbelievable, implausible) | |
| untouched | |
| unusual(adjective, obscure, dark, superior, strange) | |
| veiled(adjective, strange, unknown, curious, concealed) | |
| visionary(adjective, supernatural, imaginary, spiritual, mystical) | |
| weak(adjective, extraordinary, strange, unbelievable, implausible) | |
| weird(adjective, strange, unknown, curious, concealed) | |
| allegorical |
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| APA | Smart Define. (2015). unknowable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unknowable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unknowable thesaurus" https://smartdefine.org/unknowable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, unknowable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unknowable/thesaurus/synonyms>. |
| MLA | Smart Define. "unknowable thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/unknowable/thesaurus/synonyms> |