43 entries under active topic. ×

24
tireless(adjective, strong, continue, energetic, lively)
21
indefatigable(adjective, strong, continue, lively, determined)
20
unflagging(adjective, strong, continue, firm, solid)
11
industrious(adjective, strong, energetic, lively, determined)
9
energetic(adjective, determined, vigorous, full)
6
vigorous(adjective, strong, moving, energetic, lively)
5
strong(adjective, energetic, lively, determined)
3
dynamic(adjective, strong, moving, energetic, lively)
3
stalwart(adjective, strong, moving, lively)
2
hardy(adjective, strong, moving, lively)
2
lively(adjective, strong, moving, energetic)
2
spirited(adjective, strong, moving, energetic, lively)
2
sturdy(adjective, strong, moving, lively)
2
tough(adjective, strong, moving, lively)
2
vital(adjective, strong, moving, energetic, lively)
2
zippy(adjective, strong, moving, energetic, lively)
1
aggressive(adjective, strong, moving, lively)
1
animated(adjective, strong, moving, energetic, lively)
1
ball of fire(expression, adjective, idiom, strong, energetic)
1
breezy(adjective, strong, moving, lively)
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11 years ago|6.1k views|share |citing 
APASmart Define. (2015). untiring thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/untiring/thesaurus/synonyms
ChicagoSmart Define. 2015. "untiring thesaurus" https://smartdefine.org/untiring/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, untiring thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/untiring/thesaurus/synonyms>.
MLASmart Define. "untiring thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/untiring/thesaurus/synonyms>