Synonyms of earnest in English:

earnest


See definition of earnest

adjective

1‘he had a reputation for being dreadfully earnest’

SYNONYMS

serious, serious-minded, solemn, grave, sober, humourless, staid, steady, intense

committed, dedicated, assiduous, keen, diligent, zealous, industrious, hard-working

studious, thoughtful, cerebral, deep, profound, bookish, donnish

ANTONYMS

frivolous, apathetic

2‘they were engaged in earnest prayer’

SYNONYMS

devout, heartfelt, wholehearted, sincere, impassioned, deeply felt, from the heart, fervent, ardent, passionate, intense, burning, urgent

rare full-hearted, passional, perfervid, fervid

ANTONYMS

half-hearted