137 entries under vigorous topic. ×

7
ardent(adjective, strong, intense, energetic, passionate)
7
passionate(adjective, strong, severe, intense, violent)
7
strong-willed(adjective, hard, power, strength, active)
7
vital(adjective, strong, sound, tough, energetic)
6
driving(adjective, strong, hard, power, strength)
6
eager(adjective, strong, intense, passionate, violent)
6
emphatic(adjective, strong, direct, intense, big)
6
full-blooded(adjective, strong, power, strength, energy)
6
herculean(adjective, feature, strong, solid)
6
high-powered(adjective, strong, energetic, lively, active)
6
zippy(adjective, strong, tough, energetic, lively)
5
punchy(adjective, strong, hard, power, strength)
5
earnest(adjective, strong, intense, energetic, passionate)
5
fibrous(adjective, feature, strong, sturdy)
5
fresh(adjective, strong, hard, power, strength)
5
mettlesome(adjective, strong, tough, energetic, lively)
5
peppy(adjective, strong, tough, energetic, lively)
5
spirited(adjective, strong, tough, bright, intense)
5
trenchant(adjective, strong, direct, severe, sharp)
5
well-built(adjective, person, body, strong, sound)
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APASmart Define. (2015). powerful thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/powerful/thesaurus/synonyms
ChicagoSmart Define. 2015. "powerful thesaurus" https://smartdefine.org/powerful/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, powerful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/powerful/thesaurus/synonyms>.
MLASmart Define. "powerful thesaurus" 30 November 2015. Web. 25 September 2026. <https://smartdefine.org/powerful/thesaurus/synonyms>