46 entries under unbelievable topic. ×
| on cloud nine(expression, adjective, idiom, happy, perfect) | |
| pie in the sky(expression, adjective, idiom, happy, perfect) | |
| pipe dream(expression, adjective, happy, perfect, false) | |
| preposterous(adjective, happy, perfect, fantastic, extravagant) | |
| shadowy(adjective, happy, perfect, fantastic, extravagant) | |
| out of this world(expression, adjective, idiom, superb, wonderful) |
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| APA | Smart Define. (2015). fictitious thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/fictitious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "fictitious thesaurus" https://smartdefine.org/fictitious/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, fictitious thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/fictitious/thesaurus/synonyms>. |
| MLA | Smart Define. "fictitious thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/fictitious/thesaurus/synonyms> |