1
hot-blooded
1
impassioned
1
in all conscience(expression, idiom, adverb, seriously, vigorously)
1
in all seriousness(expression, idiom, adverb, seriously, vigorously)
1
intense
1
intently(adverb, seriously, vigorously, earnestly, actively)
1
joking
1
loyal
1
not humorously(expression, adverb, seriously, vigorously, earnestly)
1
passionate
1
passionately(adverb, down, seriously, vigorously, earnestly)
1
perfervid
1
persistently
1
purposefully(adverb, down, seriously, vigorously, earnestly)
1
red hot
1
resolute
1
sedately(adverb, down, seriously, vigorously, earnestly)
1
simmer down(expression, adverb, seriously, vigorously, earnestly)
1
soberly(adverb, down, seriously, vigorously, earnestly)
1
sobersided(adjective, work, heavy, serious)
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APASmart Define. (2015). in earnest thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/in_earnest/thesaurus/synonyms
ChicagoSmart Define. 2015. "in earnest thesaurus" https://smartdefine.org/in_earnest/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, in earnest thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/in_earnest/thesaurus/synonyms>.
MLASmart Define. "in earnest thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/in_earnest/thesaurus/synonyms>