- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0
54 entries under adjective topic. ×
| unlikely(reasonable, unreasonable, likely) | |
| unbelievable | |
| implausible(reasonable, unreasonable, likely) | |
| inconceivable(reasonable, unreasonable, imaginable) | |
| flimsy(strong, sound, implausible, unconvincing) | |
| doubtful | |
| far-fetched | |
| illogical | |
| improbable(unreasonable, likely) | |
| impossible | |
| unreasonable | |
| unimaginable | |
| incredible(bad, unremarkable) | |
| fantastical | |
| questionable | |
| unconvincing | |
| unthinkable | |
| fantastic | |
| weak | |
| amazing |
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| APA | Smart Define. (2015). plausible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/plausible/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "plausible thesaurus" https://smartdefine.org/plausible/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, plausible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/plausible/thesaurus/antonyms>. |
| MLA | Smart Define. "plausible thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/plausible/thesaurus/antonyms> |