1‘his lugubrious expression’
mournful, gloomy, sad, unhappy, doleful, Eeyorish, glum, melancholy, melancholic, woeful, miserable, woebegone, forlorn, despondent, dejected, depressed, long-faced, sombre, solemn, serious, sorrowful, morose, dour, mirthless, cheerless, joyless, wretched, dismal, grim, saturnine, pessimistic
funereal, sepulchral, dirge-like, elegiac
informal down in the mouth, down in the dumps, blue
British informal looking as if one had lost a pound and found a penny
We take a look at several popular, though confusing, punctuation marks.