Synonyms|317Antonyms|83|Broader|7Narrower|12Related|441
4
unremitting(adjective, strong, firm, energetic, determined)
4
unyielding(adjective, resolute)
3
bustling(adjective, active)
3
committed(adjective, work, strain, firmness, resolute)
3
continuing(adjective, strong, firm, determined, steady)
3
fervent(adjective, tenacious)
3
grind(adjective, strong, firm, energetic, lively)
3
hearty(adjective, resolute, tenacious)
3
intent(adjective, resolute)
3
obdurate(adjective, tenacious)
3
perky(adjective, determined)
3
plucky(adjective, resolute, tenacious)
3
purposeful
3
set(adjective, resolute)
3
studious
3
unrelenting
3
unshakeable(adjective, resolute)
3
vivacious(adjective, strong, moving, energetic, lively)
3
zippy(adjective, strong, moving, energetic, lively)
2
aggressive(adjective, strong, moving, energetic, lively)
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APASmart Define. (2016). tireless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/tireless/thesaurus/synonyms
ChicagoSmart Define. 2016. "tireless thesaurus" https://smartdefine.org/tireless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, tireless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/tireless/thesaurus/synonyms>.
MLASmart Define. "tireless thesaurus" 19 February 2016. Web. 24 September 2026. <https://smartdefine.org/tireless/thesaurus/synonyms>