278 entries under uncertain topic. ×
| gloomy(adjective, negative, cynical) | |
| hung up(expression, adjective, anxious, nervous) | |
| impugnable(adjective, open, obscure, delicate) | |
| incomprehensible(dark, mysterious) | |
| inexplicit(adjective, vague, unclear, ambiguous) | |
| jittery(adjective, anxious, awkward, nervous) | |
| jumpy(adjective, anxious, awkward, nervous) | |
| mootable(adjective, certain, dubious, unsure) | |
| muddy(vague, unclear, indistinct, indistinguishable) | |
| of two minds(expression, adjective, idiom, open) | |
| pending(adjective, open, unsettled, vague) | |
| reputed | |
| suppositional(vague, imaginary, theoretical, supposed) | |
| ticklish(noun, adjective, weak, delicate) | |
| unassured(nervous, meek, insecure, timid) | |
| unconfirmed(adjective, shaky, vague, dubious) | |
| undefined(adjective, weak, dark, dim) | |
| uneager(adjective, slow, shy, hesitant) | |
| unfixed(adjective, vague, hesitant, unknown) | |
| unhealthy(adjective, delicate, unstable, unsettled) |
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| APA | Smart Define. (2016). doubtful thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/doubtful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "doubtful thesaurus" https://smartdefine.org/doubtful/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, doubtful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/doubtful/thesaurus/synonyms>. |
| MLA | Smart Define. "doubtful thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/doubtful/thesaurus/synonyms> |