78 entries under sturdy topic. ×
| indigestible(adjective, strong, hard, solid, stiff) | |
| resistant(adjective, strong, hard, solid, stiff) | |
| robust(adjective, person, body, strong, hard) | |
| strict(adjective, strong, hard, tough) | |
| adamant(adjective, strong, hard, tough) | |
| hard-bitten(adjective, strong, hard, solid, stiff) | |
| hardened(adjective, set, strong, hard, tough) | |
| insensible(adjective, strong, hard, tough, innocent) | |
| leathery(adjective, strong, hard, solid, stiff) | |
| tough as nails(expression, adjective, idiom, strong, hard) | |
| tough inflexible(expression, strong, hard, tough) | |
| unbending(adjective, close, strong, hard, tough) | |
| unbreakable(adjective, strong, hard, firm, solid) | |
| astringent(adjective, strong, hard, tough) | |
| austere(adjective, strong, hard, tough) | |
| authoritarian(adjective, strong, hard, tough) | |
| bitter(adjective, strong, hard, tough) | |
| bullheaded(adjective, strong, hard, tough, stupid) | |
| by the book(expression, adjective, idiom, strong, hard) | |
| conditioned(adjective, strong, hard, solid, stiff) |
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| APA | Smart Define. (2015). dense thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dense/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "dense thesaurus" https://smartdefine.org/dense/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, dense thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dense/thesaurus/synonyms>. |
| MLA | Smart Define. "dense thesaurus" 17 July 2015. Web. 25 September 2026. <https://smartdefine.org/dense/thesaurus/synonyms> |