91 entries under solid topic. ×
| deep(adjective, set, heavy, dense) | |
| fine-grained(hard, tough, rigid, inflexible) | |
| gloppy(adjective, set, heavy, deep) | |
| gummous(adjective, set, heavy, deep) | |
| gunky(adjective, set, heavy, deep) | |
| hard and fast(expression, adjective, idiom, firm) | |
| located(adjective, secure, firm, steady) | |
| nonporous(hard, tough, rigid, inflexible) | |
| opaque(adjective, set, heavy, deep) | |
| situated(adjective, secure, firm, steady) | |
| syrupy(adjective, set, tough, heavy) | |
| turbid(adjective, set, heavy, deep) | |
| vitrified(adjective, set, heavy, deep) | |
| athletic(strong, thin, robust, sinewy) | |
| brawny(adjective, strong, hard, sturdy) | |
| conditioned(adjective, strong, hard, sturdy) | |
| fit(adjective, strong, hard, sturdy) | |
| hardened inflexible(expression, firm, inflexible, unbending) | |
| healthy(adjective, strong, hard, pleasant) | |
| impermeable(hard, rigid) |
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| APA | Smart Define. (2015). stiff thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, stiff thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>. |
| MLA | Smart Define. "stiff thesaurus" 24 December 2015. Web. 22 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms> |