weakening; loss of strength
Describes physical or mental weakening, often from fatigue, illness, or prolonged effort.
I felt a loss of strength in my arms after working for a long time.
disappointment; loss of interest; letdown
Colloquial use for a feeling of disappointment or sudden loss of enthusiasm, often in reaction to something anticlimactic or underwhelming.
The movie I was looking forward to was boring, and I felt really let down.
sudden extreme demotivation; losing all enthusiasm instantly
rage quit; disconnecting from a game because one is losing
looking bad in a photo; unphotogenic (on Instagram)
Noun form of the verb 萎える (なえる), which is of native Japanese origin. The colloquial sense likely developed from the idea of one's spirit or motivation 'wilting'.