disappointment

The feeling or state of being disappointed: a feeling of sadness or frustration when something is not as good as one hoped or expected, or when something bad unexpectedly happens.

Even a trip to beautiful California can cause disappointment.

They remembered too keenly their pleasant credulity as to what to-morrow would bring forth, to dare indulge expectation of its pleasure; they had been disappointed once—so might they be again—for disappointment ever leaves fear behind.

An example or the act of disappointing: a circumstance in which a positive expectation is not achieved.

The disappointment with our trip to California caused bickering.

For Liverpool, their season will now be regarded as a relative disappointment after failure to add the FA Cup to the Carling Cup and not mounting a challenge to reach the Champions League places.

Something or someone that disappoints: that which causes disappointment.

Even a trip to beautiful California can be a disappointment.

What a disappointment!