- Definitions|2
- Thesaurus|2.1k
- Abbreviations|0
| troubled(uncertain, nervous, hesitant, dubious, insecure) | |
| unaccountable | |
| unassured(adjective, uncertain, nervous, doubtful, hesitant) | |
| unclear(adjective, uncertain, nervous, doubtful, hesitant) | |
| unconfident(adjective, uncertain, nervous, doubtful, shaky) | |
| unconfirmable | |
| unconverted(adjective, false, dishonest, dubious, untrue) | |
| unconvincible | |
| uncredulous | |
| undependable(adjective, uncertain, nervous, doubtful, hesitant) | |
| undivinable | |
| uneager(adjective, uncertain, shy, doubtful, hesitant) | |
| unforeseeable | |
| unlikely(uncertain, doubtful, unsure) | |
| unorthodox | |
| unpersuadable | |
| unpersuaded | |
| unpersuasible | |
| unprovable | |
| unreliable(adjective, false, uncertain, nervous, dishonest) |
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| APA | Smart Define. (2016). skeptical thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/skeptical/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "skeptical thesaurus" https://smartdefine.org/skeptical/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, skeptical thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/skeptical/thesaurus/synonyms>. |
| MLA | Smart Define. "skeptical thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/skeptical/thesaurus/synonyms> |