78 entries under hard topic. ×
| stumpy(adjective, heavy, short, deep) | |
| substantial(adjective, close, set, strong) | |
| chunky(adjective, heavy, small, deep) | |
| nonporous(solid, rigid, density) | |
| rigid(adjective, close, set, strong) | |
| secure(verb, adjective, develop, join) | |
| stubby(adjective, heavy, small, deep) | |
| deep(adjective, set, solid, heavy) | |
| solidified(adjective, set, tough, firm) | |
| unyielding(adjective, close, set, tough) | |
| burly(deep, sturdy, fat, broad) | |
| fat(heavy, deep, sturdy, broad) | |
| inelastic(adjective, solid, rigid) | |
| inflexible(adjective, close, set, strong) | |
| iron(adjective, set, strong, firm) | |
| massed(adjective, strong, reduce, eliminate) | |
| sound(adjective, strong, substantial, tight) | |
| stable(adjective, close, strong, firm) | |
| strong(adjective, close, set, firm) | |
| sturdy(adjective, close, set, strong) |
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| APA | Smart Define. (2016). compact thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/compact/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "compact thesaurus" https://smartdefine.org/compact/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, compact thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/compact/thesaurus/synonyms>. |
| MLA | Smart Define. "compact thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/compact/thesaurus/synonyms> |