4
in fine fettle(expression, adjective, idiom, strong, sound)
4
incisive(adjective, vigor)
4
iron(adjective, strong)
4
living(adjective, alive, existing, breathing)
4
masterful(adjective, tough, smart, energetic, powerful)
4
nervous(adjective, vigor)
4
nimble(adjective, keen, fit, energetic, lively)
4
perfect(adjective, person, clean, pure, healthy)
4
persuasive(adjective, strong, energetic, violent, powerful)
4
poignant
4
prolific
4
rapid
4
rich(adjective, person, intense, healthy, thriving)
4
robustious(adjective, strong, tough, fit, healthy)
4
rosy(adjective, good, clear, pleasant, keen)
4
safe and sound(adjective, person, strong, fit, healthy)
4
salubrious(adjective, healthy)
4
sensational
4
severe(adjective, sharp, intense, penetrating, caustic)
4
spunky(adjective, energetic, lively, determined, noble)
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APASmart Define. (2016). vigorous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/vigorous/thesaurus/synonyms
ChicagoSmart Define. 2016. "vigorous thesaurus" https://smartdefine.org/vigorous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, vigorous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/vigorous/thesaurus/synonyms>.
MLASmart Define. "vigorous thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/vigorous/thesaurus/synonyms>