180 entries under serious topic. ×

10
deep(adjective, person, set, strong, warm)
10
firm(adjective, strong, severe, harsh, important)
10
somber(adjective, calm, dull, quiet, cool)
10
thoughtful(adjective, dull, quiet, kind, severe)
10
wholehearted(adjective, strong, open, pleasant, keen)
9
grim(adjective, dull, quiet, severe, dark)
9
meaningful(adjective, dull, quiet, severe, importance)
8
dear(adjective, open, kind, friendly, warm)
8
frank(adjective, person, open, honest, total)
8
honest(adjective, set, open, severe, warm)
8
persevering(adjective, careful, resolute, persistent)
8
sedulous(adjective, strong, enthusiastic, careful, thoughtful)
8
severe(adjective, calm, quiet, set, strong)
7
demure(adjective, calm, quiet, cool, modest)
7
resolved(adjective, set, severe, honest, harsh)
7
true(adjective, open, warm, honest, total)
6
constant(adjective, sensible, important, active, steady)
6
decided(adjective, firm, energetic, determined, fixed)
6
decisive(adjective, firm, big, determined, significant)
6
no-nonsense(adjective, calm, dull, quiet, work)
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APASmart Define. (2016). earnest thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/earnest/thesaurus/synonyms
ChicagoSmart Define. 2016. "earnest thesaurus" https://smartdefine.org/earnest/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, earnest thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/earnest/thesaurus/synonyms>.
MLASmart Define. "earnest thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/earnest/thesaurus/synonyms>