Melancholy; depressed; sad.
sorrowful; melancholy; dejected.
adjective sad, depressed, discouraged, miserable, crushed, dismal, melancholy, forlorn, mournful, despondent, downcast, morose, disheartened, sorrowful, downhearted, down in the dumps (informal), sick as a parrot (informal), heartsick She looked as heavy-hearted as she felt.
In low spirits:
Idiom: down at the mouth.
heavy-hearted [ˌhɛvɪˈhɑːtɪd] adj to be heavy-hearted
→ avere il cuore gonfio