- Definitions|1
- Thesaurus|241
- Abbreviations|0
66 entries under inflexible topic. ×
| confirmed | |
| decided | |
| defined | |
| definite | |
| definitive | |
| determined(hard, resolute, rigid, strict) | |
| dyed-in-the-wool(hard, resolute, rigid, strict) | |
| enduring | |
| firm(hard, rigid, strict, obstinate) | |
| immovable(hard, rigid, strict, obstinate) | |
| implacable(hard, resolute, rigid, strict) | |
| in the bag(expression, idiom, intent) | |
| indomitable(hard, resolute, rigid, strict) | |
| inexorable(hard, resolute, rigid, strict) | |
| intent | |
| inveterate | |
| level | |
| limited | |
| narrow | |
| never-failing |
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| APA | Smart Define. (2015). hard-and-fast thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/hard-and-fast/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hard-and-fast thesaurus" https://smartdefine.org/hard-and-fast/thesaurus/synonyms (accessed October 2, 2026). |
| Harvard | Smart Define 2015, hard-and-fast thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/hard-and-fast/thesaurus/synonyms>. |
| MLA | Smart Define. "hard-and-fast thesaurus" 14 April 2015. Web. 2 October 2026. <https://smartdefine.org/hard-and-fast/thesaurus/synonyms> |