108 entries under difficult topic. ×
| sticky(adjective, hard, complex, awkward) | |
| toilsome(adjective, hard, harsh, cruel) | |
| lumpy(adjective, hard, rough, complex) | |
| operose(adjective, hard, severe, violent) | |
| taxing(adjective, hard, complex, rigorous) | |
| cruel(adjective, strong, hard, tough, severe) | |
| grinding(adjective, hard, harsh, cruel) | |
| oppressive(adjective, hard, complex) | |
| precarious(adjective, hard, informal, complex) | |
| problematic(adjective, hard, delicate, uncertain) | |
| tight(adjective, hard, complex) | |
| backbreaking(adjective, hard, complex, awkward) | |
| disturbing(adjective, hard, severe, unpleasant) | |
| grievous(adjective, hard, tough, severe) | |
| hard-nosed(adjective, strong, hard, tough, severe) | |
| impossible(adjective, hard, difficulty, complex) | |
| involved(adjective, hard, complex, awkward) | |
| labyrinthine(adjective, hard, difficulty, complex) | |
| massive(adjective, hard, complex) | |
| nasty(adjective, hard, severe, rough) |
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| APA | Smart Define. (2015). rugged thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/rugged/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rugged thesaurus" https://smartdefine.org/rugged/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, rugged thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rugged/thesaurus/synonyms>. |
| MLA | Smart Define. "rugged thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/rugged/thesaurus/synonyms> |