- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
42 entries under uncertain topic. ×
| unlikely(adjective, slight, extraordinary, strange, superb) | |
| doubtful(adjective, extraordinary, fantastic, dubious) | |
| questionable(adjective, doubtful, dubious, likely) | |
| dubious(adjective, doubtful, likely, unlikely) | |
| far-fetched(adjective, hard, extraordinary, fantastic) | |
| fishy(adjective, unreasonable, doubtful, dubious) | |
| dubitable(adjective, doubtful, shaky, unsure) | |
| debatable(adjective, doubtful, shaky, unsure) | |
| equivocal(adjective, doubtful, unsure) | |
| iffy(adjective, doubtful, shaky, likely) | |
| problematic(adjective, unreasonable, doubtful, shaky) | |
| shady(doubtful, shaky, unsure, unlikely) | |
| suspect(extraordinary, unreasonable, doubtful, dubious) | |
| suspicious(fantastic, doubtful, unsure, unbelievable) | |
| arguable(doubtful, unsure) | |
| chancy(doubtful, shaky, unsure, unlikely) | |
| diffident(doubtful, unsure) | |
| disputable(doubtful, unsure) | |
| fly-by-night(doubtful, unsure) | |
| hesitant(doubtful, unsure) |
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| APA | Smart Define. (2015). improbable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/improbable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "improbable thesaurus" https://smartdefine.org/improbable/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, improbable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/improbable/thesaurus/synonyms>. |
| MLA | Smart Define. "improbable thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/improbable/thesaurus/synonyms> |