- Definitions|0
- Thesaurus|112
- Abbreviations|0
| unheard of(verb, expression, phrasal verb, strange, indefinite) | |
| unknowable | |
| unnamed(adjective, strange, indefinite, unidentified) | |
| unnoted(strange, new, remote, indefinite, unidentified) | |
| unplumbed | |
| unproved | |
| unrecognized(strange, new, remote, mysterious, indefinite) | |
| unrenowned(strange, new, remote, mysterious, indefinite) | |
| unsettled | |
| unsubstantiated | |
| unsung(adjective, strange, new, remote, indefinite) | |
| unsupported | |
| unsuspected | |
| unsustained | |
| untested | |
| untold(strange, new, uncertainty, remote, mysterious) | |
| untouched | |
| untried | |
| unverified | |
| illegible |
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| APA | Smart Define. (2015). unascertained thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unascertained/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unascertained thesaurus" https://smartdefine.org/unascertained/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, unascertained thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unascertained/thesaurus/synonyms>. |
| MLA | Smart Define. "unascertained thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/unascertained/thesaurus/synonyms> |