126 entries under difficult topic. ×
| full of twists and turns(expression, adjective, idiom, intricate) | |
| round-about | |
| turbulent(adjective, hard, severe, rough) | |
| unpleasant(tricky, problematic, embarrassing) | |
| undecipherable | |
| violent(adjective, hard, severe, rough) |
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| APA | Smart Define. (2016). complex thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/complex/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "complex thesaurus" https://smartdefine.org/complex/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, complex thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/complex/thesaurus/synonyms>. |
| MLA | Smart Define. "complex thesaurus" 11 January 2016. Web. 20 September 2026. <https://smartdefine.org/complex/thesaurus/synonyms> |