letdown
Definitions
A disappointment or a failure to meet expectations.
A decrease in intensity, effort, or activity following a period of high performance.
Examples
The movie was a huge letdown after all the hype surrounding its release.
It was a major letdown when the concert was canceled at the last minute.
Synonyms
disappointment anticlimax bummer dissatisfaction failure frustration damp squib
Antonyms
success triumph delight satisfaction accomplishment boon pleasant surprise