Crestfallen means dejected or disappointed
There are many ways one might use the term 'crestfallen.' The definition of the word 'crestfallen' means for one to feel sad or disappointed. Crestfallen could also be used to replace dejected.
The Crestfallen was created in 1992-06.
I felt really crestfallen after knowing that i have failed my examinations.
Mary's crestfallen face was surprisingly cute.
Crestfallen - 2011 was released on: USA: 1 August 2011
After losing the ballgame, I felt hollow, depressed and crestfallen.
The entire team came back looking crestfallen after losing the championship game.
discouraged
Hairaisin' ...
It relates to the days of jousting, when the losing protagonist was knocked from his horse, along with his shield or 'crest' hence, crestfallen.
disappointed
crestfallen, despondent, disconsolate, heartsick, heartsore,woebegone, woeful, wretchedAnswerDevastated.