Is there a word for a solemn type of happiness, contentedness, or joy? [closed]

Solution 1:

Another good word here is serene.

  1. Content or composed; untroubled: "She remained serene in the face of her accusers" (Peter Matthiessen).
  2. Unaffected by disturbance; calm or peaceful: a serene forest. See Synonyms at calm.
  3. Unclouded; fair: serene skies and a bright blue sea.