- Definitions|1
- Thesaurus|777
- Abbreviations|0
44 entries under implausible topic. ×
| inconceivable(adjective, belief, unreasonable, useless, size) | |
| incredible(adjective, great, excellent, belief, superb) | |
| impossible(adjective, extraordinary, strange, amazing) | |
| improbable(adjective, great, excellent, superb, super) | |
| preposterous(adjective, extraordinary, unreasonable, useless, absurd) | |
| rare(adjective, light, extraordinary, strange, exceptional) | |
| doubtful(adjective, extraordinary, amazing, dubious, unlikely) | |
| fanciful(great, excellent, superb, super, doubtful) | |
| unlikely(adjective, light, extraordinary, strange, rare) | |
| absurd(adjective, unreasonable, useless, doubtful, dubious) | |
| beyond belief(expression, adjective, idiom, extraordinary, belief) | |
| dubious(adjective, extraordinary, amazing, doubtful, unlikely) | |
| ridiculous(adjective, unbelievable, improbable, unfeasible) | |
| unconvincing(adjective, extraordinary, strange, amazing, doubtful) | |
| unknowable(adjective, extraordinary, strange, unfathomable) | |
| mind-boggling(adjective, extraordinary, strange, amazing, unbelievable) | |
| far-fetched(adjective, extraordinary, amazing, doubtful, unlikely) | |
| outlandish(extraordinary, exceptional, amazing, remarkable, particular) | |
| questionable(extraordinary, amazing, doubtful, dubious, unlikely) | |
| suspect(extraordinary, amazing, unbelievable, incredible) |
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| APA | Smart Define. (2015). unimaginable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unimaginable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unimaginable thesaurus" https://smartdefine.org/unimaginable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, unimaginable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unimaginable/thesaurus/synonyms>. |
| MLA | Smart Define. "unimaginable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/unimaginable/thesaurus/synonyms> |