56 entries under rigid topic. ×
| compacted(adjective, set, strong, hard, firm) | |
| consolidated(adjective, set, strong, hard, firm) | |
| nonporous(hard, solid, resistant, impervious) | |
| stony(adjective, set, strong, hard, firm) | |
| inflexible(adjective, close, set, strong, hard) | |
| obdurate(adjective, strong, hard, tough, sturdy) | |
| rocklike(adjective, strong, hard, firm, substantial) | |
| solidified(adjective, set, hard, tough, solid) | |
| steely(adjective, strong, hard, tough, sturdy) | |
| sturdy(adjective, person, close, set, body) | |
| adamantine(adjective, set, strong, hard, tough) | |
| congealed(adjective, set, hard, tough, solid) | |
| durable(adjective, strong, hard, firm, solid) | |
| impervious(adjective, set, hard, tough, solid) | |
| iron(adjective, set, strong, hard, tough) | |
| jelled(adjective, set, hard, tough, solid) | |
| rocky(adjective, set, strong, hard, firm) | |
| adamant(adjective, strong, hard, tough, sturdy) | |
| callous(adjective, set, strong, hard, firm) | |
| close-grained(adjective, set, hard, tough, firm) |
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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> |