770 entries under adjective topic. ×

5
heavy(dull, quiet, big, important)
5
in earnest(expression, idiom, work, heavy)
5
indefatigable
5
ruminative(reasonable, rational, thoughtful, sober)
5
scrupulous(thorough, meticulous, painstaking)
5
significant(importance, valuable, main, notable)
5
steadfast(complete, warm, total, sensible)
5
tireless
5
truthful
5
unfeigned(open, keen, warm, honest)
4
afire(keen, passionate, enthusiastic, excited)
4
busy(strong, enthusiastic, active, thoughtful)
4
concentrated(set, strong, intense, passionate)
4
desirous(keen, energetic, enthusiastic, excited)
4
dignified(calm, dull, quiet, cool)
4
dogged(energetic, active, serious, resolute)
4
enterprising(activity, energetic, enthusiastic, determined)
4
factual(true, real, truthful, indisputable)
4
finicky(thorough, meticulous, painstaking)
4
heedful(thorough, meticulous, painstaking)
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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>