66 entries under difficult topic. ×
| fatiguing(adjective, tough, rough, heavy) | |
| grinding(adjective, tough, rough, heavy) | |
| involved(adjective, tough, rough, heavy) | |
| irksome(adjective, tough, rough, heavy) | |
| mean(adjective, tough, rough, heavy) | |
| merciless(adjective, tough, rough, heavy) | |
| murder(adjective, tough, rough, heavy) | |
| ominous | |
| perilous | |
| rigorous(adjective, tough, rough, heavy) | |
| serious(adjective, tough, rough, heavy) | |
| slavish(adjective, tough, rough, heavy) | |
| sticky(adjective, tough, rough, heavy) | |
| terrible(adjective, tough, rough, heavy) | |
| tiring(adjective, tough, rough, heavy) | |
| toilful(adjective, tough, rough, heavy) | |
| unsparing(adjective, tough, rough, heavy) | |
| uphill battle(expression, adjective, tough, rough) | |
| wearing(adjective, tough, rough, heavy) | |
| wearying(adjective, tough, rough, heavy) |
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| APA | Smart Define. (2015). scabrous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/scabrous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "scabrous thesaurus" https://smartdefine.org/scabrous/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, scabrous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/scabrous/thesaurus/synonyms>. |
| MLA | Smart Define. "scabrous thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/scabrous/thesaurus/synonyms> |