- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
201 entries under adjective topic. ×
| inconceivable(extraordinary, unusual, belief, unreasonable) | |
| unthinkable(noun, extraordinary, unusual, strange) | |
| hopeless(difficulty, broken, pessimistic, desperate) | |
| unbearable(hard, difficult, pain, complex) | |
| complicated(hard, difficulty, difficult, complex) | |
| complex(hard, difficult, number) | |
| knotty(hard, difficulty, difficult, complex) | |
| problematic(hard, difficult, complex) | |
| stubborn(hard, difficulty, difficult, complex) | |
| thorny(hard, difficulty, difficult, complex) | |
| trying(hard, difficulty, difficult, complex) | |
| difficult(support, hard, attitude, unpleasant) | |
| ambitious(hard, difficult, perfect, complex) | |
| impracticable(difficulty, wild, useless, absurd) | |
| hard(difficult, complex) | |
| disturbing(hard, difficult, complex) | |
| far out(hard, difficult, complex) | |
| intricate(hard, difficulty, difficult, complex) | |
| knotted(hard, difficulty, difficult, complex) | |
| rugged(hard, difficulty, difficult, complex) |
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| APA | Smart Define. (2016). impossible thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/impossible/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "impossible thesaurus" https://smartdefine.org/impossible/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, impossible thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/impossible/thesaurus/synonyms>. |
| MLA | Smart Define. "impossible thesaurus" 9 March 2016. Web. 21 September 2026. <https://smartdefine.org/impossible/thesaurus/synonyms> |