- Definitions|2
- Thesaurus|860
- Abbreviations|0
| preoccupied | |
| punctilious | |
| purposive | |
| pushy | |
| rapt | |
| red-blooded(adjective, strong, moving, energetic, lively) | |
| reliable(adjective, resolute) | |
| rigid | |
| rugged(adjective, strong, moving, lively, active) | |
| sagging | |
| scrupulous | |
| serious(adjective, resolute) | |
| sleepless | |
| slogging | |
| snappy(adjective, strong, moving, energetic, lively) | |
| spry(adjective, strong, moving, energetic, lively) | |
| steely(adjective, resolute) | |
| stern(adjective, resolute) | |
| sticky | |
| stony(adjective, tenacious) |
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| APA | Smart Define. (2016). tireless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tireless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tireless thesaurus" https://smartdefine.org/tireless/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, tireless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tireless/thesaurus/synonyms>. |
| MLA | Smart Define. "tireless thesaurus" 19 February 2016. Web. 25 September 2026. <https://smartdefine.org/tireless/thesaurus/synonyms> |