- Definitions|2
- Thesaurus|3k
- Abbreviations|0
107 entries under strict topic. ×
| staunch(adjective, strong, tough, flat, firm) | |
| stringent(adjective, hard, severe, rough, difficult) | |
| flinty(adjective, strong, hard, tough, severe) | |
| single-minded(adjective, tough, firm, harsh, cruel) | |
| unchanging(adjective, moderate, severe, firm, harsh) | |
| cruel(adjective, strong, hard, tough, severe) | |
| indomitable(adjective, set, strong, hard, tough) | |
| pitiless(adjective, severe, harsh, cruel, determined) | |
| tight(adjective, close, strong, hard, tough) | |
| unadaptable(adjective, set, hard, stiff, rigid) | |
| undeviating(adjective, strong, smooth, flat, harsh) | |
| ironclad(adjective, set, hard, severe, harsh) | |
| persevering(adjective, strong, tough, flat, firm) | |
| unflinching(adjective, strong, flat, firm, harsh) | |
| demanding(adjective, hard, severe, rough, difficult) | |
| ruthless(adjective, hard, rough, harsh, cruel) | |
| unsparing(adjective, strong, hard, tough, severe) | |
| cold(adjective, strong, hard, severe, harsh) | |
| definite(adjective, strong, hard, severe, flat) | |
| hard and fast(expression, adjective, idiom, set) |
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| APA | Smart Define. (2016). inflexible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, inflexible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>. |
| MLA | Smart Define. "inflexible thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms> |