76 entries under vigorously topic. ×

1
down(adverb, seriously, earnestly, actively)
1
emphatically
1
expeditiously(earnestly, actively, hastily, carefully)
1
for real(expression, adverb, seriously, earnestly)
1
friskily
1
gravely(adverb, seriously, earnestly, actively)
1
hastily(earnestly, actively, carefully, keenly)
1
hurriedly(earnestly, actively, hastily, carefully)
1
in all conscience(expression, idiom, adverb, seriously)
1
in all seriousness(expression, idiom, adverb, seriously)
1
in earnest(expression, adverb, seriously, earnestly)
1
like all get out(expression, earnestly, hastily, carefully)
1
like the devil(expression, earnestly, hastily, carefully)
1
like the dickens(expression, earnestly, hastily, carefully)
1
lustily
1
nimbly(earnestly, actively, hastily, carefully)
1
not humorously(expression, adverb, seriously, earnestly)
1
painstakingly(earnestly, actively, hastily, carefully)
1
perseveringly(earnestly, actively, hastily, carefully)
1
potently
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APASmart Define. (2015). fervently thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/fervently/thesaurus/synonyms
ChicagoSmart Define. 2015. "fervently thesaurus" https://smartdefine.org/fervently/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, fervently thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/fervently/thesaurus/synonyms>.
MLASmart Define. "fervently thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/fervently/thesaurus/synonyms>