- Definitions|2
- Thesaurus|860
- Abbreviations|0
| laborious(adjective, hardworking) | |
| obstinate(adjective, tenacious) | |
| perseverant | |
| single-minded | |
| strong(adjective, moving, firm, energetic, lively) | |
| vital(adjective, strong, moving, energetic, lively) | |
| animated(adjective, strong, moving, energetic, lively) | |
| attentive | |
| careful | |
| courageous(adjective, resolute, tenacious) | |
| dauntless(adjective, resolute, tenacious) | |
| hard(adjective, tenacious) | |
| incessant(adjective, strong, firm, determined, active) | |
| painstaking | |
| patient(noun, adjective, strong, firm, energetic) | |
| persisting | |
| productive(adjective, work, strain, firmness, labour) | |
| sprightly(adjective, strong, moving, energetic, lively) | |
| tough(adjective, strong, moving, difficult, lively) | |
| true(adjective, resolute, tenacious) |
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| APA | Smart Define. (2016). tireless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/tireless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tireless thesaurus" https://smartdefine.org/tireless/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, tireless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/tireless/thesaurus/synonyms>. |
| MLA | Smart Define. "tireless thesaurus" 19 February 2016. Web. 24 September 2026. <https://smartdefine.org/tireless/thesaurus/synonyms> |