71 entries under idiom topic. ×
| bizarre uncomformable(expression, improbability) | |
| clearness of mind | |
| entertain doubts(expression, unbelief doubt) | |
| far from certain(expression, questionable, debatable) | |
| from left field(expression, changeable, erratic, random) | |
| hanging by thread(expression, uncertain, nervous, insecure) | |
| harbor doubts(expression, unbelief doubt) | |
| have doubts(expression, unbelief doubt) | |
| have one's doubts(expression, unbelief doubt) | |
| in issue(expression, inquiry) | |
| in suspense(expression, uncertainty) | |
| not convinced | |
| not in the mood(expression, adjective, slow, shy) | |
| obscurum per obscurius(expression, unintelligibility) | |
| off the wall(expression, unusual, strange, unexpected) | |
| on a hunch(expression, uncertain, speculative) | |
| on a long shot(expression, uncertain, speculative) | |
| open to discussion(expression, uncertainty) | |
| out of line(expression, dubious, suspect, shady) | |
| out of the ordinary(expression, unusual, strange, dubious) |
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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> |