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7
eager(adjective, determined)
7
lively(adjective, strong, moving, energetic)
6
enterprising(adjective, strong, moving, energetic, lively)
6
stalwart(adjective, strong, moving, energetic, lively)
5
strong(adjective, moving, firm, energetic, lively)
5
vital(adjective, strong, moving, energetic, lively)
4
animated(adjective, strong, moving, energetic, lively)
4
incessant(adjective, strong, firm, determined)
4
sprightly(adjective, strong, moving, energetic, lively)
4
tough(adjective, strong, moving, difficult, lively)
3
bustling
3
grind(adjective, strong, firm, energetic, lively)
3
vivacious(adjective, strong, moving, energetic, lively)
3
zippy(adjective, strong, moving, energetic, lively)
2
aggressive(adjective, strong, moving, energetic, lively)
2
brisk(adjective, strong, moving, energetic, lively)
2
kinetic(adjective, strong, moving, energetic, lively)
2
moving
2
peppy(adjective, strong, moving, energetic, lively)
2
plugging(adjective, strong, keen, firm, lively)
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APASmart Define. (2016). tireless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/tireless/thesaurus/synonyms
ChicagoSmart Define. 2016. "tireless thesaurus" https://smartdefine.org/tireless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, tireless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/tireless/thesaurus/synonyms>.
MLASmart Define. "tireless thesaurus" 19 February 2016. Web. 23 September 2026. <https://smartdefine.org/tireless/thesaurus/synonyms>