- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
68 entries under doubtful topic. ×
| debatable(adjective, uncertain, shaky, unsure) | |
| equivocal(adjective, uncertain, unsure) | |
| faint | |
| iffy(adjective, uncertain, shaky, likely) | |
| impracticable(adjective, wild, silly, unreasonable) | |
| problematic(adjective, uncertain, unreasonable, shaky) | |
| shady(uncertain, shaky, unsure, unlikely) | |
| suspect(extraordinary, uncertain, unreasonable, dubious) | |
| suspicious(uncertain, fantastic, unsure, unbelievable) | |
| unapt(adjective, likely) | |
| arguable(uncertain, unsure) | |
| chancy(uncertain, shaky, unsure, unlikely) | |
| diffident(uncertain, unsure) | |
| disputable(uncertain, unsure) | |
| fly-by-night(uncertain, unsure) | |
| hesitant(uncertain, unsure) | |
| hundred-to-one(adjective, likely, unlikely, implausible) | |
| inconclusive(adjective, open, obscure, poor, thin) | |
| indecisive(uncertain, unsure) | |
| moot(uncertain, unsure) |
For more, visit
Improbable on
Power Thesaurus
| APA | Smart Define. (2015). improbable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/improbable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "improbable thesaurus" https://smartdefine.org/improbable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, improbable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/improbable/thesaurus/synonyms>. |
| MLA | Smart Define. "improbable thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/improbable/thesaurus/synonyms> |