197 entries under hard topic. ×
| sinking(adjective, evil, rough, nasty) | |
| snide(adjective, evil, rough, nasty) | |
| strident(adjective, severe, sharp, flat) | |
| touch(adjective, evil, rough, nasty) | |
| treacherous(adjective, evil, rough, nasty) | |
| tuneless(adjective, severe, sharp, flat) | |
| unfriendly(adjective, evil, rough, nasty) | |
| unmelodious(adjective, severe, sharp, flat) | |
| unmusical(adjective, severe, sharp, rough) | |
| unrelenting(adjective, strong, tough, severe) | |
| unscrupulous(adjective, evil, rough, nasty) | |
| vexatious(adjective, evil, rough, nasty) | |
| vicious(adjective, evil, rough, nasty) | |
| vile(adjective, evil, rough, nasty) | |
| bullheaded(adjective, strong, tough, sturdy) | |
| by the book(expression, adjective, idiom, strong) | |
| disciplinary(adjective, strong, tough, sturdy) | |
| dyed-in-the-wool(adjective, strong, tough, sturdy) | |
| ferric(adjective, strong, tough, sturdy) | |
| ferrous(adjective, strong, tough, sturdy) |
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| APA | Smart Define. (2015). rugged thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/rugged/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rugged thesaurus" https://smartdefine.org/rugged/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, rugged thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/rugged/thesaurus/synonyms>. |
| MLA | Smart Define. "rugged thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/rugged/thesaurus/synonyms> |