20 entries under improbable topic. ×
| floating(adjective, happy, perfect, silly, fantastic) | |
| gone(adjective, silly, impractical, unlikely, unreal) | |
| nonsensical(adjective, silly, impractical, unlikely, unreal) | |
| on cloud nine(expression, adjective, idiom, happy, perfect) | |
| reachy(adjective, silly, impractical, unlikely, unreal) | |
| romantic(adjective, happy, perfect, silly, fantastic) | |
| unreal(adjective, happy, perfect, false, silly) | |
| unrealistic(adjective, happy, practical, fortunate, unlikely) | |
| half-baked(adjective, silly, impractical, unlikely, unreal) | |
| idealistic(happy, fortunate, unlikely, storybook) | |
| impossible(adjective, silly, impractical, unlikely, idealistic) | |
| impracticable(adjective, silly, impractical, unlikely, unreal) | |
| impractical(adjective, happy, silly, fortunate, unlikely) | |
| ivory-tower(adjective, silly, impractical, unlikely, unreal) | |
| naive(unlikely, idealistic) | |
| nonrealistic(adjective, silly, impractical, unlikely, unreal) | |
| silly(adjective, impractical, unlikely, unreal, idealistic) | |
| theoretical(adjective, silly, impractical, unlikely, idealistic) | |
| unlikely(adjective, fantastic, imaginary, unbelievable, idealistic) | |
| unworkable(adjective, silly, impractical, unlikely, unreal) |
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| APA | Smart Define. (2015). blue sky thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/blue_sky/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "blue sky thesaurus" https://smartdefine.org/blue_sky/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, blue sky thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/blue_sky/thesaurus/synonyms>. |
| MLA | Smart Define. "blue sky thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/blue_sky/thesaurus/synonyms> |