- Definitions|2
- Thesaurus|3k
- Abbreviations|0
107 entries under strict topic. ×
| adamantine(adjective, strong, hard, tough, firm) | |
| tough(adjective, mean, strong, hard, severe) | |
| implacable(adjective, mean, strong, hard, tough) | |
| intractable(adjective, strong, hard, tough, rough) | |
| hard-nosed(adjective, mean, strong, hard, secure) | |
| severe(adjective, strong, hard, tough, severe) | |
| dogged(adjective, mean, strong, hard, tough) | |
| stern(adjective, hard, tough, severe, rough) | |
| unchangeable(adjective, strong, secure, moderate, flat) | |
| grim(adjective, strong, hard, tough, severe) | |
| resolved(adjective, strong, severe, flat, firm) | |
| rigorous(adjective, strong, hard, tough, severe) | |
| harsh(adjective, mean, strong, hard, tough) | |
| iron(adjective, mean, strong, hard, tough) | |
| pigheaded(adjective, mean, hard, firm, deliberate) | |
| steely(adjective, strong, hard, tough, firm) | |
| unalterable(adjective, set, strong, hard, secure) | |
| hidebound(adjective, moderate, severe, firm, determined) | |
| austere(adjective, strong, hard, tough, severe) | |
| immutable(adjective, set, hard, secure, rough) |
For more, visit
Inflexible on
Power Thesaurus
| APA | Smart Define. (2016). inflexible thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, inflexible thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>. |
| MLA | Smart Define. "inflexible thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms> |