- Definitions|0
- Thesaurus|10
- Abbreviations|0
9 entries under impossible topic. ×
| improbable | |
| incomprehensible | |
| inconceivable | |
| not feasible(expression, adjective) | |
| out of the question(expression, adjective, idiom) | |
| totally unlikely(expression, adjective) | |
| unacceptable | |
| unimaginable | |
| unthinkable |
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| APA | Smart Define. (1970). highly unlikely thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/highly_unlikely/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "highly unlikely thesaurus" https://smartdefine.org/highly_unlikely/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 1970, highly unlikely thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/highly_unlikely/thesaurus/synonyms>. |
| MLA | Smart Define. "highly unlikely thesaurus" 1 January 1970. Web. 23 September 2026. <https://smartdefine.org/highly_unlikely/thesaurus/synonyms> |