117 entries under vague topic. ×
| unclear(adjective, clear, open, obscure, rough) | |
| shady(adjective, open, honest, unusual, strange) | |
| unreliable(adjective, delicate, uncertain, nervous, unstable) | |
| borderline(adjective, clear, open, delicate, certain) | |
| incredible(adjective, great, extraordinary, unreasonable, fantastic) | |
| indistinct(adjective, obscure, rough, uncertain, dim) | |
| chancy(noun, adjective, clear, delicate, certain) | |
| indeterminate(adjective, clear, obscure, rough, certain) | |
| vacillating(adjective, weak, uncertain, nervous, shy) | |
| controversial(noun, adjective, uncertain, hot, unsettled) | |
| disreputable(adjective, dishonest, dubious, unclear) | |
| insecure(adjective, delicate, uncertain, awkward, nervous) | |
| precarious(adjective, uncertain, unstable, shaky) | |
| undetermined(adjective, open, weak, rough, determined) | |
| unpredictable(noun, adjective, uncertain, shy) | |
| unresolved(adjective, open, uncertain, unsettled) | |
| clouded(adjective, clear, certain, uncertain) | |
| enigmatic(adjective, uncertain, dubious, mysterious) | |
| hazy(adjective, uncertain, shaky, unclear) | |
| open(adjective, uncertain, nervous, unstable, unsettled) |
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| APA | Smart Define. (2016). doubtful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/doubtful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "doubtful thesaurus" https://smartdefine.org/doubtful/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, doubtful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/doubtful/thesaurus/synonyms>. |
| MLA | Smart Define. "doubtful thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/doubtful/thesaurus/synonyms> |