103 entries under vigorous topic. ×

8
animate(verb, adjective, strong, produce, keen)
8
energetic(adjective, good, clear, moving, pleasant)
7
diligent(adjective, keen, intense, energetic, lively)
6
chipper(adjective, good, clear, pleasant, keen)
6
gay(adjective, keen, smart, bright, happy)
5
enthusiastic(adjective, strong, moving, keen, bright)
5
peppy(adjective, moving, bright, energetic, lively)
5
perky(adjective, moving, keen, bright, happy)
5
zippy(adjective, moving, keen, sharp, bright)
4
vital(adjective, adverb, good, clear, pleasant)
3
astir(adjective, adverb, activity, moving, energetic)
3
dashing(adjective, moving, keen, smart, intense)
3
eager(adjective, strong, keen, intense, energetic)
3
intense(adjective, set, strong, keen, energetic)
3
live(verb, adjective, energetic, lively, active)
3
rapid(adjective, keen, sharp, intense, energetic)
2
bold(adjective, keen, sharp, smart, bright)
2
busy(adjective, moving, keen, intense, energetic)
2
cheerful(adjective, keen, bright, happy, energetic)
2
earnest(adjective, set, strong, sensible, intense)
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APASmart Define. (2016). alert thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/alert/thesaurus/synonyms
ChicagoSmart Define. 2016. "alert thesaurus" https://smartdefine.org/alert/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, alert thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/alert/thesaurus/synonyms>.
MLASmart Define. "alert thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/alert/thesaurus/synonyms>