153 entries under substantial topic. ×
| equable(adjective, calm, strong, firm, fast) | |
| fixed resistant(expression, calm, strong, steady) | |
| gross(adjective, material, big, heavy) | |
| immanent | |
| in fine feather(expression, adjective, idiom, strong, sound) | |
| meaty(adjective, big, heavy, large) | |
| motionless(strong, secure, steady, fixed) | |
| nailed(adjective, calm, strong, secure, firm) | |
| narrow(adjective, close, strong, firm, short) | |
| never-failing(adjective, firm, certain, steady) | |
| perdurable(calm, strong, steady, even) | |
| phenomenal(extraordinary, material, unusual, exceptional, outstanding) | |
| poised(adjective, calm, strong, firm, certain) | |
| ponderous(adjective, big, heavy, large) | |
| short(adjective, close, direct, smooth, right) | |
| solid as a rock(expression, adjective, idiom, calm, strong) | |
| stabile(adjective, calm, strong, firm, fast) | |
| stark(adjective, strong, hard, sound, tough) | |
| staying put(expression, calm, strong, steady) | |
| together(adjective, calm, strong, firm, perfect) |
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| APA | Smart Define. (2016). solid thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/solid/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "solid thesaurus" https://smartdefine.org/solid/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, solid thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/solid/thesaurus/synonyms>. |
| MLA | Smart Define. "solid thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/solid/thesaurus/synonyms> |