162 entries under solid topic. ×
| recognized(proper, accepted, established, valid) | |
| sanctioned(honest, proper, accepted, established) | |
| sanguine(adjective, strong, easy, firm) | |
| satisfactory(adjective, good, reasonable, sensible) | |
| sedate(adjective, firm, sensible, steady) | |
| self-confident(adjective, strong, easy, firm) | |
| set in stone(expression, adjective, idiom, calm, strong) | |
| shoo-in(adjective, strong, easy, certain) | |
| solid as a rock(expression, adjective, idiom, calm, strong) | |
| stabile(adjective, calm, strong, secure, firm) | |
| staid(adjective, firm, sensible, steady) | |
| stationary(calm, strong, steady, substantial) | |
| staying put(expression, calm, strong, substantial) | |
| sure thing(expression, adjective, clear, strong, easy) | |
| there(adjective, open, honest, sensible) | |
| together(calm, strong, sound, sensible) | |
| unalterable(adjective, calm, strong, secure, firm) | |
| unanxious(adjective, strong, easy, certain) | |
| undoubtful(adjective, strong, easy, firm) | |
| unfluctuating(adjective, calm, strong, secure, firm) |
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| APA | Smart Define. (2016). reliable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/reliable/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "reliable thesaurus" https://smartdefine.org/reliable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, reliable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/reliable/thesaurus/synonyms>. |
| MLA | Smart Define. "reliable thesaurus" 3 March 2016. Web. 23 September 2026. <https://smartdefine.org/reliable/thesaurus/synonyms> |