82 entries under stiff topic. ×
| gunky(adjective, set, solid, heavy, deep) | |
| hard-bitten(adjective, strong, hard, solid) | |
| hardened(adjective, set, strong, hard, tough) | |
| leathery(adjective, strong, hard, solid) | |
| narrow(adjective, close, strong, firm, solid) | |
| ossified(adjective, set, solid, heavy, deep) | |
| thickened(adjective, set, solid, heavy, deep) | |
| tough as nails(expression, adjective, idiom, strong, hard) | |
| unbending(adjective, close, strong, hard, tough) | |
| unbreakable(adjective, strong, hard, firm, solid) | |
| vitrified(adjective, set, solid, heavy, deep) | |
| conditioned(adjective, strong, hard, solid) | |
| fibrous(adjective, strong, hard, solid) | |
| fit(adjective, strong, hard, solid) | |
| indurate(adjective, set, strong, hard, firm) | |
| indurated(adjective, set, strong, hard, firm) | |
| lusty(adjective, strong, hard, solid) | |
| molded(adjective, strong, hard, solid) | |
| resilient(adjective, strong, hard, solid) | |
| seasoned(adjective, strong, hard, solid) |
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| APA | Smart Define. (2015). dense thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/dense/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "dense thesaurus" https://smartdefine.org/dense/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, dense thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/dense/thesaurus/synonyms>. |
| MLA | Smart Define. "dense thesaurus" 17 July 2015. Web. 24 September 2026. <https://smartdefine.org/dense/thesaurus/synonyms> |