What is crestfallen definition?

Crestfallen refers to a feeling of disappointment, shame or humiliation. The word is commonly used to describe someone who is sad or disappointed because of failure or defeat, or someone who has lost confidence in themselves or their abilities. The term is often associated with a sagging or drooping posture, which reflects a sense of defeat or discouragement. The definition of crestfallen has its origins in the literal sense of the word, which means to have one's crest or head feathers droop in response to a negative situation. The word is often used in literature and poetry to convey a sense of sadness or defeatism.