95 entries under vigorous topic. ×

1
obsessed(adjective, keen, warm, passionate, enthusiastic)
1
animate(adjective, strong, intense, energetic, enthusiastic)
1
athirst(adjective, strong, keen, warm, intense)
1
attracted(adjective, keen, warm, tender, passionate)
1
bugged(adjective, keen, warm, passionate, violent)
1
concerned(adjective, kind, keen, friendly, warm)
1
elated(adjective, energetic, enthusiastic, excited, lively)
1
frisky
1
interested(adjective, strong, keen, warm, intense)
1
nutty(adjective, keen, warm, passionate, enthusiastic)
1
prolific
1
puissant
1
rhapsodic(adjective, keen, warm, passionate, enthusiastic)
1
thrilled(adjective, keen, warm, passionate, excited)
1
virile
1
vitalized(adjective, energetic, excited, lively, active)
1
willing(adjective, keen, warm, passionate, enthusiastic)
0
alert(adjective, strong, intense, energetic, enthusiastic)
0
activated(adjective, energetic, excited, lively, active)
0
buoyant(adjective, energetic, excited, lively, active)
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APASmart Define. (2015). fervent thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/fervent/thesaurus/synonyms
ChicagoSmart Define. 2015. "fervent thesaurus" https://smartdefine.org/fervent/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, fervent thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/fervent/thesaurus/synonyms>.
MLASmart Define. "fervent thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/fervent/thesaurus/synonyms>