crestfallen
[adjective]
Synonyms: disappointed, dejected, depressed, despondent, discouraged, disheartened, downcast, downhearted

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Antonyms: elated
Related Idioms: in a funk

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English Thesaurus: disappointed, feel let down, disillusioned, disenchanted, be/feel sorry, ...

[TahlilGaran] English Synonym Dictionary ▲

crest‧fal‧len /ˈkrestˌfɔːlən $ -ˌfɒːl-/ adjective
looking disappointed and upset Synonym : downcast:
He came back looking crestfallen.

[TahlilGaran] Dictionary of Contemporary English ▲

disappointed unhappy because something you hoped for did not happen, or because something was not as good as you expected:
Hundreds of disappointed fans were unable to get tickets for the game.
I was disappointed with the grade I got in my Maths exam.
feel let down to feel disappointed because something was not as good as you expected, or someone did not do what you expected them to do for you - a rather informal use:
I felt let down when I saw the film.
Nurses feel badly let down – they were promised a pay increase months ago.
disillusioned /ˌdɪsəˈluːʒənd◂, ˌdɪsɪˈluːʒənd◂/ disappointed because you have lost your belief that an idea is right, or that something or someone is good:
Their leaders are deeply disillusioned with the peace process.
Disillusioned voters are turning against the government.
disenchanted no longer feeling enthusiastic, especially so that you do not think you should be involved in something, or give someone your support:
Americans have grown increasingly disenchanted with politics.
a disenchanted workforce
be/feel sorry spoken used when telling someone that you feel disappointed and wish that the situation was different:
I’m sorry you can’t come to the party.
She always felt sorry that she hadn’t got to know him better.
gutted [not before noun] British English informal extremely disappointed, especially because you were unsuccessful:
I was gutted when we lost the game.
crestfallen literary looking very disappointed and sad, especially when you suddenly realise that something you want cannot happen:
Gary looked crestfallen as they calculated how much money they would need.
a crestfallen look

[TahlilGaran] English Thesaurus ▲