137 entries under hard topic. ×
| disciplinary(adjective, strong, tough, sturdy) | |
| dyed-in-the-wool(adjective, strong, tough, sturdy) | |
| ferric(adjective, strong, tough, sturdy) | |
| ferrous(adjective, strong, tough, sturdy) | |
| flinty(adjective, strong, tough, sturdy) | |
| forbidding(adjective, strong, tough, sturdy) | |
| frowning(adjective, strong, tough, sturdy) | |
| grim(adjective, strong, tough, sturdy) | |
| hang-tough(adjective, strong, tough, sturdy) | |
| hard-boiled(adjective, strong, tough, sturdy) | |
| hard-core(adjective, strong, tough, sturdy) | |
| hard-line(adjective, strong, tough, sturdy) | |
| hard-nosed(adjective, strong, tough, sturdy) | |
| hard-shell(adjective, strong, tough, sturdy) | |
| hard as nails(expression, adjective, idiom, strong) | |
| hardheaded(adjective, strong, tough, sturdy) | |
| hulk(adjective, strong, substantial, compact) | |
| hunk(adjective, strong, substantial, compact) | |
| immovable(adjective, strong, tough, sturdy) | |
| implacable(adjective, strong, tough, sturdy) |
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| APA | Smart Define. (2016). thick thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/thick/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "thick thesaurus" https://smartdefine.org/thick/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, thick thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/thick/thesaurus/synonyms>. |
| MLA | Smart Define. "thick thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/thick/thesaurus/synonyms> |