107 entries under keen topic. ×

5
chipper(adjective, good, clear, strong, great)
5
frisky(adjective, moving, sharp, energetic)
4
bouncing(adjective, good, clear, pleasant)
4
busy(adjective, moving, energetic, lively)
4
clear(adjective, good, pleasant, sharp)
4
diligent(adjective, energetic, lively, determined)
4
nimble(adjective, fit, energetic, lively)
4
rosy(adjective, good, clear, pleasant)
3
avid(adjective, warm, energetic, passionate)
3
daring(adjective, energetic, lively, noble)
3
florid(adjective, health, good, clear, pleasant)
2
anxious(adjective, warm, intense, passionate)
2
bustling(adjective, moving, sharp, energetic)
2
devoted(adjective, warm, passionate, excited)
2
ebullient(adjective, warm, energetic, passionate)
2
fair(adjective, good, clear, pleasant)
2
full of life(expression, adjective, idiom, strong, tough)
2
ready(adjective, sharp, bright, energetic)
2
red-hot(adjective, warm, passionate, excited)
2
refreshed(adjective, good, clear, pleasant)
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APASmart Define. (2016). vigorous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/vigorous/thesaurus/synonyms
ChicagoSmart Define. 2016. "vigorous thesaurus" https://smartdefine.org/vigorous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, vigorous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/vigorous/thesaurus/synonyms>.
MLASmart Define. "vigorous thesaurus" 1 April 2016. Web. 28 September 2026. <https://smartdefine.org/vigorous/thesaurus/synonyms>