Other forms: disappointments
Disappointment is the flat, heavy feeling when something turns out worse than you hoped. The exam result you read twice; the holiday rained out from Monday; the friend who cancels an hour before.
The word does double duty. It is the feeling (she could not hide her disappointment) and it is the thing or person causing it (the film was a disappointment; he felt he was a disappointment to his father). It keeps strong company: bitter disappointment, crushing disappointment, a huge disappointment. Two frames are worth copying whole — much to my disappointment and to everyone's disappointment. The verb is disappoint, and the two adjectives are the trap: a person is disappointed, a thing is disappointing, and swapping them is the mistake almost everyone makes.
1noundisappointmentThe unhappy feeling you get when something is worse than you hoped.
“There was real disappointment in her voice on the phone.”
synonyms: dismay, frustration
2nounfailsSomeone or something that fails to be as good as expected.
“After all those reviews, the restaurant was a disappointment.”
disappointment is a feeling.
Middle French
desapointer
English
disappoint
English, today
disappointment
From disappoint + -ment. disappoint comes from Middle French desapointer (compare French désappointer). The word originally meant to "dispossess of appointed office", and eventually broadened to mean "to frustrate the expectations or desires of" and "defeat the realization or fulfillment of".
Etymology from Wiktionary, CC BY-SA