crestfallen

/ˈkɹɛstfɔːlən/

adjective

Meaning

Sad because of a recent disappointment.
Depressed.
(of a horse) Having the crest, or upper part of the neck, hanging to one side.

Synonyms

blue,

dejected,

depressed,

despondent,

down in the dumps,

downcast,

sorrowful,

disappointed,

disillusioned