4
brisk(adjective, strong, tough, intense, energetic)
4
dashing(adjective, strong, tough, intense, energetic)
4
determined(adjective, energetic, resolute, forceful, courageous)
4
doughty(adjective, fear, courageous, fearless, plucky)
4
eager(adjective, bright, energetic, passionate, determined)
4
enterprising(adjective, strong, tough, intense, energetic)
4
feisty(adjective, energetic, determined, spirited, forceful)
4
firm(adjective, strong, courageous, fearless, plucky)
4
indomitable(adjective, courageous, fearless, plucky)
4
keen(adjective, bright, energetic, lively, determined)
4
lion-hearted(adjective, courage)
4
passionate(adjective, bright, energetic, determined, vigorous)
4
peppery(adjective, action, bright, energetic, passionate)
4
red-blooded(adjective, strong, tough, intense, energetic)
4
stout-hearted(adjective, courage)
4
zealous(adjective, strong, tough, bright, energetic)
3
daredevil
3
effervescent(adjective, energetic, determined, forceful, feisty)
3
exuberant(adjective, strong, tough, intense, energetic)
3
full of pep(expression, adjective, idiom, energetic, lively)
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APASmart Define. (2016). mettlesome thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/mettlesome/thesaurus/synonyms
ChicagoSmart Define. 2016. "mettlesome thesaurus" https://smartdefine.org/mettlesome/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, mettlesome thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/mettlesome/thesaurus/synonyms>.
MLASmart Define. "mettlesome thesaurus" 2 March 2016. Web. 29 September 2026. <https://smartdefine.org/mettlesome/thesaurus/synonyms>