- Definitions|2
- Thesaurus|3k
- Abbreviations|0
97 entries under persistent topic. ×
| single-minded(adjective, tough, firm, harsh, cruel) | |
| cruel(adjective, strong, hard, tough, severe) | |
| pitiless(adjective, severe, harsh, cruel, determined) | |
| tight(adjective, close, strong, hard, tough) | |
| undeviating(adjective, strong, smooth, flat, harsh) | |
| constant(adjective, strong, secure, moderate, flat) | |
| persevering(adjective, strong, tough, flat, firm) | |
| steady(adjective, strong, secure, moderate, flat) | |
| sturdy(adjective, close, strong, hard, tough) | |
| unflinching(adjective, strong, flat, firm, harsh) | |
| ruthless(adjective, hard, rough, harsh, cruel) | |
| true(adjective, strong, smooth, tough, flat) | |
| changeless(adjective, set, certain, limited, definite) | |
| inhuman(adjective, harsh, cruel, determined, fierce) | |
| intense(adjective, severe, harsh, cruel, resolute) | |
| strong(adjective, set, hard, tough, flat) | |
| sure(adjective, strong, tough, flat, firm) | |
| unappeasable(adjective, harsh, cruel, determined, fierce) | |
| unfaltering(adjective, strong, firm, certain, limited) | |
| unstoppable(adjective, harsh, cruel, determined, fierce) |
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| APA | Smart Define. (2016). inflexible thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, inflexible thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>. |
| MLA | Smart Define. "inflexible thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms> |