140 entries under tough topic. ×

10
potent(adjective, strong, direct, sound)
10
powerful(adjective, strong, direct, sound)
10
ready(adjective, activity, keen, sharp)
10
vital(adjective, good, clear, strong)
9
efficient(adjective, strong, direct, energetic)
9
robust(adjective, strong, sound, fit)
8
chipper(adjective, activity, good, clear, strong)
8
efficacious(adjective, move, movement, moving)
8
forcible(adjective, activity, strong, direct, sound)
8
lusty(adjective, strong, fit, energetic)
7
effectual(adjective, move, prompt, quick)
7
mettlesome(adjective, strong, energetic, powerful)
7
profitable(adjective, move, energetic, effective)
6
dashing(adjective, activity, strong, moving)
6
driving(adjective, action, strong, bright)
5
exuberant(adjective, strong, energetic, enthusiastic)
5
hardy(adjective, good, clear, strong, sound)
4
hale(adjective, strong, sound, fit)
4
sound(adjective, strong, direct, fit)
4
virile(adjective, strong, fit, lively)
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APASmart Define. (2016). active thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/active/thesaurus/synonyms
ChicagoSmart Define. 2016. "active thesaurus" https://smartdefine.org/active/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, active thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/active/thesaurus/synonyms>.
MLASmart Define. "active thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/active/thesaurus/synonyms>