215 entries under adjective topic. ×

4
unyielding
3
bustling
3
committed(work, strain, firmness, resolute)
3
continuing(strong, firm, determined, steady)
3
fervent
3
grind(strong, firm, energetic, lively)
3
hearty(resolute, tenacious)
3
intent
3
obdurate
3
perky
3
plucky(resolute, tenacious)
3
purposeful
3
set
3
studious
3
unshakeable
3
vivacious(strong, moving, energetic, lively)
3
zippy(strong, moving, energetic, lively)
2
aggressive(strong, moving, energetic, lively)
2
brisk(strong, moving, energetic, lively)
2
bulldogged
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APASmart Define. (2016). tireless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/tireless/thesaurus/synonyms
ChicagoSmart Define. 2016. "tireless thesaurus" https://smartdefine.org/tireless/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, tireless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/tireless/thesaurus/synonyms>.
MLASmart Define. "tireless thesaurus" 19 February 2016. Web. 26 September 2026. <https://smartdefine.org/tireless/thesaurus/synonyms>