- Definitions|1
- Thesaurus|1.1k
- Abbreviations|0
65 entries under rigid topic. ×
| fixed(adjective, strong, complete, secure, flat) | |
| immutable(adjective, calm, strong, secure, firm) | |
| unchanging(adjective, moderate, firm, solid, certain) | |
| inflexible(adjective, strong, secure, moderate, flat) | |
| constant(adjective, calm, strong, secure, moderate) | |
| immovable(adjective, set, secure, firm, solid) | |
| invariable(adjective, calm, set, strong, secure) | |
| firm(adjective, calm, strong, secure, moderate) | |
| resolute(adjective, calm, strong, secure, flat) | |
| steadfast(adjective, calm, strong, secure, flat) | |
| changeless(adjective, firm, solid, certain, stable) | |
| stubborn(adjective, steady, fixed, resolute) | |
| determined(adjective, strong, hard, definite, resolute) | |
| obstinate(adjective, moderate, cautious, strict) | |
| steady(adjective, calm, strong, secure, moderate) | |
| unyielding(adjective, strong, hard, steady, resolute) | |
| inexorable(adjective, hard, resolute, inflexible) | |
| unvarying(adjective, calm, clear, strong, secure) | |
| unwavering(adjective, calm, strong, secure, flat) | |
| inalterable(adjective, certain, limited, definite, fixed) |
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| APA | Smart Define. (2015). unchangeable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unchangeable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unchangeable thesaurus" https://smartdefine.org/unchangeable/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, unchangeable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unchangeable/thesaurus/synonyms>. |
| MLA | Smart Define. "unchangeable thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/unchangeable/thesaurus/synonyms> |