- Definitions|2
- Thesaurus|729
- Abbreviations|0
39 entries under firm topic. ×
| constant(adjective, good, change, strong, continue) | |
| unflagging(adjective, strong, continue, certain) | |
| persistent(adjective, strong, continue, certain) | |
| staunch(noun, adjective, good, strong) | |
| unfaltering(adjective, set, clear, strong) | |
| indefatigable(adjective, set, strong, continue) | |
| steady(adjective, good, strong, honest) | |
| tireless(adjective, set, strong, continue) | |
| inexhaustible(adjective, strong, continue, energetic) | |
| unremitting(adjective, strong, continue, determined) | |
| unwearied(adjective, strong, continue, energetic) | |
| dogged(adjective, strong, determined, steady) | |
| resolute(adjective, set, strong, determined) | |
| unswerving(adjective, set, strong, determined) | |
| unwavering(adjective, set, clear, strong) | |
| changeless(adjective, change, set, clear) | |
| determined(adjective, good, strong, honest) | |
| unceasing(adjective, strong, continue, determined) | |
| continuing(adjective, strong, certain, determined) | |
| persevering(adjective, set, strong, energetic) |
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| APA | Smart Define. (2016). unfailing thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unfailing/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unfailing thesaurus" https://smartdefine.org/unfailing/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, unfailing thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unfailing/thesaurus/synonyms>. |
| MLA | Smart Define. "unfailing thesaurus" 3 March 2016. Web. 29 September 2026. <https://smartdefine.org/unfailing/thesaurus/synonyms> |