(uncountable) 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.

plural of disappointment

Defeated of expectations or hope; experiencing disappointment; let down. / Having had a marriage proposal rejected. / Expressing or indicating disappointment.

simple past tense and past participle of disappoint

Causing disappointment.

present participle of disappoint

(transitive) To sadden or displease (someone) by underperforming, or by not delivering something promised or hoped for. / (transitive) To deprive (someone of something expected or hoped for).

(Internet slang) disappointed

Third-person singular simple present indicative form of disappoint

plural of disappointer