- Definitions|0
- Thesaurus|218
- Abbreviations|0
82 entries under doubtful topic. ×
| ambivalent(adjective, open, vague, unsure) | |
| changeable(vague, unsure) | |
| diffident(uncertain, unsure) | |
| doubtable(uncertain, shaky, unlikely, unpromising) | |
| erratic(vague, unsure) | |
| far-fetched(uncertain, shaky, unsure, unlikely) | |
| fitful(vague, unsure) | |
| fly-by-night(uncertain, unsure) | |
| hanging by a thread(expression, idiom, vague, unsure) | |
| hazy(shaky, vague, unsure, unlikely) | |
| improbable(uncertain, shaky, unsure, unlikely) | |
| incalculable(vague, unsure) | |
| inconstant(vague, unsure) | |
| indistinct(shaky, vague, unsure, unlikely) | |
| insecure(shaky, vague, unsure, unlikely) | |
| irregular(vague, unsure) | |
| irresolute(adjective, open, uncertain, unsettled) | |
| mootable(uncertain, unsure) | |
| not born yesterday on the lookout(expression, adjective, idiom, careful) | |
| on thin ice(expression, idiom, shaky, vague) |
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| APA | Smart Define. (2015). in doubt thesaurus. Retrieved September 27, 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 27, 2026). |
| Harvard | Smart Define 2015, in doubt thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/in_doubt/thesaurus/synonyms>. |
| MLA | Smart Define. "in doubt thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/in_doubt/thesaurus/synonyms> |