- Definitions|1
- Thesaurus|500
- Abbreviations|0
| staunch(adjective, determined, perseverance, persevering) | |
| firm(noun, adjective, determined, persevering) | |
| persisting(adjective, continuous) | |
| pertinacious(adjective, determined, persevering) | |
| steady(adjective, determined, persevering) | |
| unrelenting | |
| unwearying | |
| constant(adjective, determined, persevering) | |
| hardworking | |
| indomitable(adjective, determined, perseverance, persevering) | |
| inexhaustible(adjective, continue, determined, tired, persevering) | |
| stubborn | |
| dedicated(adjective, determined, persevering) | |
| unremitting(adjective, determined, persevering) | |
| vigorous(adjective, strong, moving, energetic, lively) | |
| weariless(adjective, continue, tired, tireless) | |
| devoted(adjective, determined, persevering) | |
| patient(adjective, energetic, endure, determined, vigorous) | |
| perseverant | |
| relentless |
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| APA | Smart Define. (2015). untiring thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/untiring/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "untiring thesaurus" https://smartdefine.org/untiring/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, untiring thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/untiring/thesaurus/synonyms>. |
| MLA | Smart Define. "untiring thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/untiring/thesaurus/synonyms> |