- Definitions|2
- Thesaurus|985
- Abbreviations|0
50 entries under hard topic. ×
| fixed(adjective, secure, rough, firm) | |
| unalterable(adjective, calm, strong, secure) | |
| firm(adjective, calm, strong, secure) | |
| inflexible(adjective, set, secure, rough) | |
| resolute(adjective, calm, strong, determined) | |
| rigid(adjective, set, regular, fixed) | |
| immovable(adjective, set, steady, regular) | |
| obstinate(adjective, set, strong, severe) | |
| adamant(adjective, firm, fixed, inflexible) | |
| determined(adjective, firm, resolute, rigid) | |
| dogged(adjective, set, strong, firm) | |
| intractable(adjective, set, severe, rough) | |
| rigorous(adjective, resolute, rigid, inflexible) | |
| stiff(adjective, set, severe, rough) | |
| unbending(adjective, firm, rigid, inflexible) | |
| uncompromising(adjective, secure, rough, firm) | |
| unyielding(adjective, firm, steady, fixed) | |
| iron(adjective, set, stiff, rigid) | |
| single-minded(adjective, set, stiff, rigid) | |
| steely(adjective, set, stiff, rigid) |
For more, visit
Immutable on
Power Thesaurus
| APA | Smart Define. (2015). immutable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/immutable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "immutable thesaurus" https://smartdefine.org/immutable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, immutable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/immutable/thesaurus/synonyms>. |
| MLA | Smart Define. "immutable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/immutable/thesaurus/synonyms> |