3
firmly(adverb, fast, intensely, fiercely, quickly)
3
heart and soul(expression, idiom, resolution)
3
industriously(adverb, thoroughly, vigorously, closely, actively)
3
painstakingly(thoroughly, fully, completely, closely, hastily)
3
perseveringly(adverb, vigorously, actively, hastily, carefully)
3
persistently(adverb, thoroughly, vigorously, closely, actively)
3
powerfully(adverb, fast, seriously, intensely, fiercely)
3
purposefully(adverb, seriously, vigorously, quickly, actively)
3
relentlessly(adverb, fast, sprightly, seriously, intensely)
3
studiously(adverb, vigorously, actively, hastily, carefully)
2
badly
2
briskly(adverb, fast, seriously, intensely, fiercely)
2
busily(adverb, actively, intently)
2
deep
2
deeply
2
diligently(adverb, thoroughly, vigorously, closely, actively)
2
down(adverb, seriously, vigorously, actively, truly)
2
enjoy(expression, accept, love, like, absorb)
2
fiercely(adverb, fast, seriously, intensely, heartily)
2
fixedly
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APASmart Define. (2016). earnestly thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/earnestly/thesaurus/synonyms
ChicagoSmart Define. 2016. "earnestly thesaurus" https://smartdefine.org/earnestly/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, earnestly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/earnestly/thesaurus/synonyms>.
MLASmart Define. "earnestly thesaurus" 11 March 2016. Web. 24 September 2026. <https://smartdefine.org/earnestly/thesaurus/synonyms>