1. [ adjective ] characterized by a firm and humorless belief in the validity of your opinions
Synonyms: earnest solemn sincere

"both sides were deeply in earnest, even passionate" "an entirely sincere and cruel tyrant" "a film with a solemn social message"

Related terms: serious
2. [ adverb ] in a serious manner
Synonyms: seriously earnestly

"talking earnestly with his son" "she started studying snakes in earnest" "a play dealing seriously with the question of divorce"

Related terms: serious earnest serious earnest
Similar spelling:   inherent