- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
143 entries under adjective topic. ×
| unlikely(slight, extraordinary, strange, superb) | |
| incredible(great, excellent, flat, poor) | |
| unbelievable(great, excellent, flat, poor) | |
| implausible(great, slight, flat, poor) | |
| doubtful(extraordinary, uncertain, fantastic, dubious) | |
| questionable(uncertain, doubtful, dubious, likely) | |
| unthinkable(great, excellent, unusual, superb) | |
| dubious(uncertain, doubtful, likely, unlikely) | |
| inconceivable(great, flat, poor, thin) | |
| marvelous(hard, great, excellent, superb) | |
| unconvincing(great, flat, poor, thin) | |
| unimaginable(great, excellent, superb, super) | |
| absurd(wild, unreasonable, useless, doubtful) | |
| far-fetched(hard, extraordinary, uncertain, fantastic) | |
| impossible(extraordinary, wild, strange, unbelievable) | |
| fantastic(great, excellent, extraordinary, strange) | |
| weak(great, poor, extraordinary, strange) | |
| fanciful(great, excellent, superb, super) | |
| fishy(uncertain, unreasonable, doubtful, dubious) | |
| wonderful(great, excellent, superb, super) |
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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> |