252 entries under vigorous topic. ×

4
indefatigable(adjective, strong, moving, difficult, energetic)
4
influential(adjective, energetic, powerful, lively)
4
pushing(adjective, activity, movement, moving, keen)
4
resolute(adjective, activity, keen, energetic, lively)
4
responsive(adjective, open, energetic, enthusiastic)
4
sound(adjective, strong, direct, tough, fit)
4
virile(adjective, strong, tough, fit, lively)
4
well(adjective, person, strong, tough, fit)
3
ablaze(adjective, fire, flame)
3
activity(noun, adjective, moving, energetic)
3
adroit(adjective, smart, skill, process)
3
agitated(adjective, upset, anxious, nervous)
3
assertive(adjective, energy, violent, aggressive)
3
cheerful(adjective, keen, bright, happy, energetic)
3
chirpy(adjective, moving, bright, energetic, lively)
3
clever(adjective, tough, sharp, bright, energetic)
3
coltish(adjective, moving, energetic, affected)
3
current(adjective, direct, energetic, lively)
3
daring(adjective, activity, keen, energetic, lively)
3
emphatic(adjective, strong, direct, enthusiastic)
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APASmart Define. (2016). active thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/active/thesaurus/synonyms
ChicagoSmart Define. 2016. "active thesaurus" https://smartdefine.org/active/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, active thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/active/thesaurus/synonyms>.
MLASmart Define. "active thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/active/thesaurus/synonyms>