2
vital(adjective, strong, moving, energetic, lively)
2
zippy(adjective, strong, moving, energetic, lively)
1
accommodating(adjective, calm, quiet, understanding, gentle)
1
active(adjective, strong, energetic, lively, determined)
1
aggressive(adjective, strong, moving, lively, active)
1
animated(adjective, strong, moving, energetic, lively)
1
ball of fire(expression, adjective, idiom, strong, energetic)
1
bound and determined
1
breezy(adjective, strong, moving, lively, active)
1
brisk(adjective, strong, moving, energetic, lively)
1
capable(adjective, calm, quiet, understanding, gentle)
1
cartilaginous
1
chewy
1
cohesive
1
composed(adjective, calm, quiet, gentle, restrained)
1
continual
1
continuous
1
coriaceous
1
dauntless
1
dead set on
11 years ago|6.1k views|share |citing 
APASmart Define. (2015). untiring thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/untiring/thesaurus/synonyms
ChicagoSmart Define. 2015. "untiring thesaurus" https://smartdefine.org/untiring/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, untiring thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/untiring/thesaurus/synonyms>.
MLASmart Define. "untiring thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/untiring/thesaurus/synonyms>