The verb disappoint has the participle adjectives disappointing (disappointing news) and disappointed(disappointed fans). The present participle (disappointing) is also used as a noun. It does not seem to work as an adjective for "people who disappoint."
If you're talking about the adjective, here's a list (and some of these words can also be used as verbs if need be):
aghast
beaten
complaining
crestfallen
defeated
depressed
despondent
disconcerted
discouraged
disenchanted
disgruntled
disillusioned
dissatisfied
distressed
down
frustrated
hopeless
unhappy
unsatisfied
upset
Irritated,aggravated
Decieve, delude, or let down
disheartened
Letdown
sad
The disappointment I feel every day is exhausting.
It was a disappointment I could not go to the movies today.
Disappointment is the feeling of sadness or displeasure caused by the non-fulfillment of one's hopes or expectations. e.g. Your failure is the reason for my disappointment
Disappointment.
pleased
Distress can be a synonym for 'disappointment'
No, I have cross-checked the thesaurus!
bathos, descent, letdown, disappointment
One good one would be "disappointment".
yes a synonym for disapointment is blunder
hopelessness OR disappointment.
Only you can answer that! To whom are you a disappointment?
The Disappointment was created in 1762.
Disappointment has four syllables.
Disillusionment is a difficult thing to go through.
The disappointment I feel every day is exhausting.
What was Rosa Parks biggest disappointment