10
firm(adjective, strong, severe, harsh, important)
10
great(adjective, intense, importance, valuable, main)
10
impressive(adjective, importance, valuable, main, notable)
10
momentous(adjective, importance, important, valuable, main)
10
portentous(adjective, importance, valuable, main, notable)
10
somber(adjective, calm, dull, quiet, cool)
10
thoughtful(adjective, dull, quiet, kind, severe)
10
vigorous(adjective, keen, warm, intense, energetic)
10
wholehearted(adjective, strong, open, pleasant, keen)
9
ambitious(adjective, keen, importance, wild, enthusiastic)
9
assiduous(adjective, thorough, meticulous, painstaking)
9
big(adjective, importance, valuable, main, notable)
9
big-league(adjective, importance, valuable, main, notable)
9
burning(adjective, feeling, strong, keen, warm)
9
deposit(noun, agreement, contract, assurance, promise)
9
essential(adjective, importance, valuable, main, notable)
9
fateful(adjective, importance, valuable, main, notable)
9
grand(adjective, importance, valuable, main, notable)
9
grim(adjective, dull, quiet, severe, dark)
9
important(adjective, importance, substantial, valuable, main)
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APASmart Define. (2016). earnest thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/earnest/thesaurus/synonyms
ChicagoSmart Define. 2016. "earnest thesaurus" https://smartdefine.org/earnest/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, earnest thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/earnest/thesaurus/synonyms>.
MLASmart Define. "earnest thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/earnest/thesaurus/synonyms>