4
warmly(keenly, eagerly, passionately, fervently, expressively)
3
toughly(adverb, strongly)
3
fiercely(adverb, fast, seriously, intensely, earnestly)
3
hammer and tongs(expression, idiom, adverb, strong)
3
healthily(adverb, healthily)
3
intently(adverb, seriously, earnestly, actively, heartily)
3
keenly(adverb, fast, seriously, intensely, fiercely)
3
lively(adjective, adverb, healthily)
3
muscularly(adverb, strongly)
3
purposefully(adverb, thoroughly, seriously, earnestly, actively)
3
seriously(adverb, fast, intensely, fiercely, earnestly)
3
stalwartly
3
vitally(adverb, strongly, healthily)
3
with a vengeance(expression, idiom, adverb)
3
zestfully(adverb, earnestly, promptly, enthusiastically, energetically)
2
actively intently(expression, earnestly, actively, hastily, carefully)
2
arduously(adverb, badly, severely, earnestly, hastily)
2
brawnily(adverb, strongly)
2
diligently(adverb, earnestly, actively, hastily, carefully)
2
emphatically
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APASmart Define. (2015). vigorously thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/vigorously/thesaurus/synonyms
ChicagoSmart Define. 2015. "vigorously thesaurus" https://smartdefine.org/vigorously/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, vigorously thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/vigorously/thesaurus/synonyms>.
MLASmart Define. "vigorously thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/vigorously/thesaurus/synonyms>