- Definitions|1
- Thesaurus|1.1k
- Abbreviations|0
50 entries under calm topic. ×
| solid(adjective, strong, secure, firm) | |
| strong(adjective, solid, substantial, constant) | |
| reliable(adjective, strong, secure, firm) | |
| tough(adjective, strong, solid, substantial) | |
| sturdy(adjective, strong, secure, firm) | |
| balanced(adjective, strong, secure, firm) | |
| equable(adjective, strong, secure, firm) | |
| fast(adjective, strong, secure, firm) | |
| secure(adjective, strong, firm, solid) | |
| stationary(strong, solid, steady, substantial) | |
| unfluctuating(adjective, strong, secure, firm) | |
| anchored(strong, solid, steady, substantial) | |
| brick-wall(adjective, strong, secure, firm) | |
| deep-rooted(strong, solid, steady, substantial) | |
| fixed resistant(expression, strong, solid, substantial) | |
| nailed(strong, solid, steady, substantial) | |
| perdurable(strong, solid, steady, substantial) | |
| poised(adjective, strong, secure, firm) | |
| safe(adjective, strong, secure, firm) | |
| set in stone(expression, adjective, idiom, strong) |
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| APA | Smart Define. (2015). unchangeable thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unchangeable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unchangeable thesaurus" https://smartdefine.org/unchangeable/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, unchangeable thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unchangeable/thesaurus/synonyms>. |
| MLA | Smart Define. "unchangeable thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/unchangeable/thesaurus/synonyms> |