- Definitions|1
- Thesaurus|618
- Abbreviations|0
174 entries under adjective topic. ×
| relentless | |
| weariless(continue, tired, tireless) | |
| devoted(strong, firm, determined, steady) | |
| hardworking | |
| immutable | |
| laborious | |
| lasting | |
| resolved | |
| sedulous | |
| true(strong, firm, certain, determined) | |
| bold | |
| dedicated(strong, firm, solid, intense) | |
| fervent | |
| insistent | |
| obdurate | |
| patient(strong, firm, energetic, determined) | |
| perseverant | |
| single-minded | |
| strong(sound, tough, fit, firm) | |
| vigorous(strong, sound, tough, fit) |
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| APA | Smart Define. (2015). unflagging thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unflagging/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unflagging thesaurus" https://smartdefine.org/unflagging/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, unflagging thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unflagging/thesaurus/synonyms>. |
| MLA | Smart Define. "unflagging thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/unflagging/thesaurus/synonyms> |