185 entries under vigorous topic. ×

15
vehement(adjective, clear, strong, tough, severe)
13
fanatical(adjective, strong, moving, severe, keen)
13
fiery(adjective, feeling, strong, moving, keen)
13
warm(adjective, strong, kind, moving, concern)
11
industrious(adjective, strong, keen, intense, energetic)
10
lively(adjective, strong, tough, keen, warm)
10
sincere(adjective, person, feeling, keen, warm)
9
diligent(adjective, strong, keen, intense, energetic)
9
exuberant(adjective, strong, tough, keen, warm)
9
glowing(adjective, feeling, strong, keen, warm)
8
enterprising(adjective, activity, strong, tough, keen)
8
rabid(adjective, concern, severe, keen, warm)
8
resolute(adjective, activity, clear, tough, severe)
8
strong(adjective, tough, difficult, intense, energetic)
7
intent(adjective, strong, keen, warm, intense)
7
strenuous(adjective, activity, strong, tough, smart)
7
willing(adjective, keen, warm, passionate, enthusiastic)
6
determined(adjective, clear, tough, severe, keen)
6
devout(adjective, kind, keen, warm, intense)
6
dynamic(adjective, strong, tough, keen, smart)
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APASmart Define. (2016). zealous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/zealous/thesaurus/synonyms
ChicagoSmart Define. 2016. "zealous thesaurus" https://smartdefine.org/zealous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, zealous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/zealous/thesaurus/synonyms>.
MLASmart Define. "zealous thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/zealous/thesaurus/synonyms>