- Definitions|0
- Thesaurus|218
- Abbreviations|0
| fly-by-night(uncertain, doubtful, unsure) | |
| guarded(wary, mistrustful, distrustful) | |
| hanging by a thread(expression, idiom, doubtful, vague, unsure) | |
| hazardous(shaky, unlikely, unpromising) | |
| hazy(doubtful, shaky, vague, unsure, unlikely) | |
| hemming and hawing(expression, adjective, idiom, open, unsure) | |
| hesitancy | |
| hesitates | |
| hesitation | |
| hesitations | |
| improbable(uncertain, doubtful, shaky, unsure, unlikely) | |
| impugnable(shaky, unlikely, unpromising) | |
| in dispute | |
| in the middle(expression, adjective, idiom, open, unsure) | |
| incalculable(doubtful, vague, unsure) | |
| inconstant(doubtful, vague, unsure) | |
| indeterminacies | |
| indistinct(doubtful, shaky, vague, unsure, unlikely) | |
| inexact | |
| insecure(doubtful, shaky, vague, unsure, unlikely) |
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| APA | Smart Define. (2015). in doubt thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/in_doubt/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "in doubt thesaurus" https://smartdefine.org/in_doubt/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, in doubt thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/in_doubt/thesaurus/synonyms>. |
| MLA | Smart Define. "in doubt thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/in_doubt/thesaurus/synonyms> |