Causing disappointment.

present participle of disappoint

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

(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

(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

Third-person singular simple present indicative form of disappoint

plural of disappointer