- Definitions|3
- Thesaurus|581
- Abbreviations|0
46 entries under unbelievable topic. ×
| pie in the sky(expression, adjective, idiom, happy, perfect) | |
| pipe dream(expression, adjective, happy, perfect, fantastic) | |
| poetic(adjective, happy, perfect, fantastic, extravagant) | |
| far-fetched(adjective, fantastic, imaginary, unlikely) | |
| out of this world(expression, adjective, idiom, fantastic, imaginary) | |
| unlikely(adjective, fantastic, imaginary, whimsical) |
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| APA | Smart Define. (2015). notional thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/notional/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "notional thesaurus" https://smartdefine.org/notional/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, notional thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/notional/thesaurus/synonyms>. |
| MLA | Smart Define. "notional thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/notional/thesaurus/synonyms> |