9
gallant(adjective, fear, courage, courageous, fearless)
9
valiant(adjective, lively, fear, courage, spirited)
9
vivacious(adjective, energetic, lively, determined, animated)
8
animated(adjective, energetic, lively, determined, vigorous)
8
gamy
8
gutsy(adjective, slang, bright, energetic, passionate)
7
ardent(adjective, bright, energetic, passionate, lively)
7
gamey
7
hardy(adjective, strong, tough, intense, energetic)
7
peppy(adjective, strong, tough, energetic, powerful)
7
resolute(adjective, bright, energetic, passionate, determined)
7
strong(adjective, strong, tough, energetic, powerful)
6
adventurous(adjective, courageous, fearless, plucky)
6
gutty(adjective, slang, energetic, lively, fear)
6
manful(adjective, courage)
6
nervy(adjective, bright, energetic, passionate, determined)
6
snappy(adjective, action, strong, tough, bright)
6
stout(adjective, strong, fear, courage)
6
tough(adjective, strong, intense, energetic, powerful)
6
valorous(adjective, fear, courage)
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APASmart Define. (2016). mettlesome thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/mettlesome/thesaurus/synonyms
ChicagoSmart Define. 2016. "mettlesome thesaurus" https://smartdefine.org/mettlesome/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, mettlesome thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/mettlesome/thesaurus/synonyms>.
MLASmart Define. "mettlesome thesaurus" 2 March 2016. Web. 28 September 2026. <https://smartdefine.org/mettlesome/thesaurus/synonyms>