Disappoint
Definition 1 of 1
Pro Tip 1/3
Anticipation Matters
The sense of failure is stronger if high expectations are not met. He disappointed his fans by cancelling the highly anticipated concert.
Pro Tip 2/3
Subjectivity
What disappoints someone may not disappoint another; it's often a personal feeling. The movie disappointed me, but my sister loved it.
Pro Tip 3/3
Not Always Serious
'Disappoint' can be used in light situations and doesn't always mean deep sadness. I was disappointed by the lack of chocolate chips in my cookie.