94 entries under vigorous topic. ×

6
zealous(adjective, tough, keen, smart, intense)
5
diligent(adjective, keen, intense, energetic, lively)
5
forceful(adjective, tough, keen, smart, bright)
5
lively(adjective, keen, smart, bright, intense)
5
male(adjective, noble, courageous)
4
high-spirited(adjective, strong, tough, keen, intense)
4
noble(adjective, strong, polite, thoughtful)
3
eager(adjective, keen, intense, energetic, passionate)
3
self-reliant(certain, noble, sure, courageous)
3
sharp(adjective, clear, hard, keen, bright)
3
virile(adjective, noble, courageous)
2
active(adjective, activity, keen, energetic, lively)
2
alert(adjective, keen, sharp, smart, bright)
2
domineering(adjective, tough, smart, energetic)
2
dynamic(adjective, tough, keen, smart, intense)
2
energetic(adjective, tough, keen, smart, intense)
2
enthusiastic(adjective, keen, intense, energetic, lively)
2
full of life(expression, adjective, idiom, keen, bright)
2
keen(adjective, sharp, smart, bright, intense)
2
macho(adjective, noble, courageous)
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APASmart Define. (2016). bold thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/bold/thesaurus/synonyms
ChicagoSmart Define. 2016. "bold thesaurus" https://smartdefine.org/bold/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, bold thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/bold/thesaurus/synonyms>.
MLASmart Define. "bold thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/bold/thesaurus/synonyms>