2. (adj)earnest, sincere, solemn characterized by a firm and humorless belief in the validity of your opinions
"both sides were deeply in earnest, even passionate"; "an entirely sincere and cruel tyrant"; "a film with a solemn social message"
3. (adj)dear, devout, earnest, heartfelt earnest "one's dearest wish"; "devout wishes for their success"; "heartfelt condolences"
4. (adj)businesslike, earnest not distracted by anything unrelated to the goal