1
farinaceous
1
fastidious
1
fervid(adjective, energetic)
1
flourishing(adjective, strong, tough, intense, energetic)
1
full-blooded(adjective, vigorous)
1
full of life(expression, adjective, idiom, bright, energetic)
1
gingery(adjective, bright, energetic, passionate, lively)
1
go-go
1
gushing
1
hale(adjective, strong, tough, intense, energetic)
1
hard-driving(adjective, strong, tough, intense, energetic)
1
hazardable(noun, adjective)
1
healthy(adjective, strong, tough, intense, energetic)
1
high
1
highly emotional
1
hot(adjective, bright, energetic, passionate, determined)
1
hyper(adjective, bright, energetic, passionate, determined)
1
impassioned(adjective, vigorous)
1
impetuous
1
impressible
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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>