8
rabid(adjective, concern, severe, keen, warm)
8
resolute(adjective, activity, clear, tough, severe)
8
strong(adjective, tough, difficult, intense, energetic)
7
ambitious(adjective, keen, energetic, enthusiastic, excited)
7
committed(adjective, kind, keen, warm, total)
7
feverish(adjective, strong, passionate, violent, excited)
7
heated(adjective, strong, moving, keen, difficult)
7
intent(adjective, strong, keen, warm, intense)
7
jealous(adjective, wary)
7
loyal(adjective, kind, keen, friendly, warm)
7
perfervid(adjective, strong, keen, warm, intense)
7
serious(adjective, keen, warm, total, 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)
6
flaming(adjective, feeling, strong, difficult, intense)
6
frenetic(adjective, keen, passionate, enthusiastic, excited)
6
heartfelt(adjective, strong, keen, warm, difficult)
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APASmart Define. (2016). zealous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/zealous/thesaurus/synonyms
ChicagoSmart Define. 2016. "zealous thesaurus" https://smartdefine.org/zealous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, zealous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/zealous/thesaurus/synonyms>.
MLASmart Define. "zealous thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/zealous/thesaurus/synonyms>