58 entries under unlikely topic. ×
| fishy(adjective, uncertain, doubtful, shaky, dubious) | |
| improbable(adjective, uncertain, doubtful, shaky, likely) | |
| shady(adjective, uncertain, doubtful, shaky, dubious) | |
| weak(adjective, uncertain, nervous, doubtful, insecure) | |
| flimsy(adjective, doubtful, implausible, unsubstantiated) | |
| on thin ice(expression, adjective, idiom, delicate, uncertain) | |
| open(adjective, uncertain, nervous, unstable, doubtful) | |
| suspect(uncertain, doubtful, shaky, dubious, tricky) | |
| disreputable(shaky, unpromising) | |
| far-fetched(uncertain, doubtful, shaky, unsure) | |
| fat chance(expression, shaky, unpromising) | |
| hazy(doubtful, shaky, vague, unsure) | |
| hundred-to-one(doubtful, implausible) | |
| impugnable(adjective, delicate, uncertain, unstable, doubtful) | |
| indistinct(doubtful, shaky, vague, unsure) | |
| long shot(expression, adjective, delicate, uncertain, sensitive) | |
| not expected(expression, doubtful, implausible) | |
| not likely(expression, doubtful, implausible) | |
| obscure(uncertain, doubtful, shaky, dubious, restricted) | |
| outside chance(expression, doubtful, implausible) |
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| APA | Smart Define. (2015). iffy thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/iffy/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "iffy thesaurus" https://smartdefine.org/iffy/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, iffy thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/iffy/thesaurus/synonyms>. |
| MLA | Smart Define. "iffy thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/iffy/thesaurus/synonyms> |