- Definitions|2
- Thesaurus|2.9k
- Abbreviations|0
103 entries under fantastic topic. ×
| unconvincing(adjective, extraordinary, amazing, unbelievable) | |
| unrealistic(adjective, happy, false, foolish) | |
| unworkable(adjective, foolish, unreasonable, useless) | |
| chimerical(adjective, happy, perfect, strange) | |
| foolhardy(adjective, simple, wild, strange, silly) | |
| humorous(adjective, funny, absurd, amusing) | |
| imprudent(adjective, weak, simple, wrong, severe) | |
| offbeat(adjective, happy, perfect, extravagant) | |
| quixotic(adjective, happy, silly, foolish) | |
| whimsical(adjective, happy, perfect, strange, funny) | |
| fantastical(adjective, happy, perfect, extravagant) | |
| fishy(adjective, extraordinary, amazing, absurd) | |
| flaky(adjective, great, wrong, happy, perfect) | |
| goofy(adjective, strange, foolish, stupid) | |
| half-baked(weak, simple, careless, foolish, stupid) | |
| hilarious(adjective, silly, foolish, stupid) | |
| irresponsible(adjective, wrong, careless, wild, foolish) | |
| notional(adjective, happy, perfect, extravagant) | |
| puerile(adjective, silly, foolish, stupid) | |
| short-sighted(adjective, weak, simple, silly, foolish) |
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| APA | Smart Define. (2015). preposterous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/preposterous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "preposterous thesaurus" https://smartdefine.org/preposterous/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, preposterous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/preposterous/thesaurus/synonyms>. |
| MLA | Smart Define. "preposterous thesaurus" 2 September 2015. Web. 27 September 2026. <https://smartdefine.org/preposterous/thesaurus/synonyms> |