- Definitions|1
- Thesaurus|241
- Abbreviations|0
36 entries under adjective topic. ×
| inflexible(hard, strict, obstinate, stubborn) | |
| set(hard, stiff, resolute, rigid) | |
| strict(hard, rigid, inflexible, obstinate) | |
| absolute | |
| binding | |
| compulsory | |
| conclusive | |
| decisive | |
| final | |
| irrevocable | |
| mandatory | |
| exacting | |
| inalterable(hard, inflexible, intent, unalterable) | |
| unbending(hard, rigid, inflexible, strict) | |
| unchangeable(set, hard, certain, stiff) | |
| dogged(set, hard, stiff, rigid) | |
| fixed(set, hard, certain, stiff) | |
| immutable(set, hard, stiff, rigid) | |
| intractable(set, hard, stiff, rigid) | |
| iron(set, hard, stiff, rigid) |
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| APA | Smart Define. (2015). hard-and-fast thesaurus. Retrieved September 28, 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 September 28, 2026). |
| Harvard | Smart Define 2015, hard-and-fast thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard-and-fast/thesaurus/synonyms>. |
| MLA | Smart Define. "hard-and-fast thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/hard-and-fast/thesaurus/synonyms> |