disappointment

noun
  1. The feeling of sadness or displeasure caused by the non-fulfillment of one's hopes or expectations. noun
    She felt a deep sense of disappointment when she didn't get the job.
    His disappointment was evident when his team lost the championship.
  2. An event, occurrence, or person that does not meet expectations or hopes. noun
    The movie was a disappointment to fans who expected more action.
    The concert was a disappointment because the main singer didn't show up.