Definition of crestfallen in English:

crestfallen

Line breaks: crest|fall¦en
Pronunciation: /ˈkrɛstfɔːlən
 
/

adjective

Origin

late 16th century: originally with reference to a mammal or bird having a fallen or drooping crest.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody