1
hastily(earnestly, powerfully, carefully, keenly, eagerly)
1
heart and soul(expression, idiom)
1
heavily(adverb, fast, sprightly, severely, seriously)
1
hefty
1
hungrily(earnestly, promptly, enthusiastically, energetically, anxiously)
1
hurriedly(quickly, earnestly, actively, rapidly, hastily)
1
huskily(adverb, strongly)
1
impatiently(earnestly, promptly, enthusiastically, energetically, anxiously)
1
imperiously(earnestly, powerfully, keenly, eagerly, passionately)
1
impetuously(fiercely, earnestly, powerfully, keenly, eagerly)
1
imploringly(earnestly, powerfully, keenly, eagerly, passionately)
1
importunately(earnestly, powerfully, keenly, eagerly, passionately)
1
impressively
1
in all conscience(expression, idiom, adverb, seriously, earnestly)
1
in all seriousness(expression, idiom, adverb, seriously, earnestly)
1
in earnest(expression, adverb, seriously, earnestly, actively)
1
indefatigably(adverb, earnestly, actively, hastily, carefully)
1
insistently(earnestly, powerfully, keenly, eagerly, passionately)
1
kindly
1
knock
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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>