137 entries under hard topic. ×
| impermeable(adjective, close, set, tough) | |
| jelled(adjective, set, tough, firm) | |
| nonporous(solid, rigid, syrupy, jellied) | |
| rough(adjective, strong, simple, tough) | |
| tough(adjective, person, set, body, strong) | |
| fixed(adjective, strong, firm, solid) | |
| hefty(adjective, person, body, strong) | |
| impervious(adjective, solid, rigid, dense) | |
| rigid(adjective, strong, tough, firm) | |
| compacted(adjective, strong, firm, solid) | |
| harsh(adjective, strong, simple, tough) | |
| solidified(adjective, set, tough, firm) | |
| wooden(adjective, firm, solid, stiff) | |
| massed(adjective, strong, full, compact) | |
| rigorous(adjective, strong, tough, sturdy) | |
| robust(adjective, person, body, strong) | |
| sound(adjective, strong, substantial, compact) | |
| starchy(adjective, firm, solid, stiff) | |
| sturdy(adjective, person, close, set, body) | |
| tense(adjective, close, firm, solid) |
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| APA | Smart Define. (2016). thick thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/thick/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "thick thesaurus" https://smartdefine.org/thick/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, thick thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/thick/thesaurus/synonyms>. |
| MLA | Smart Define. "thick thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/thick/thesaurus/synonyms> |