Disastified. Dissatisfaction. Disappointing, disappear.
Disability, disdaining- disgusting
Difficult
dislike
Disgrace

Let down. Saddened. aghast - balked.
Beaten. chap-fallen - deafen.

Bitter-pill. Blind.
Alley. Blow.

Anticlimactic.

Crestfallen. thwarted, foil. baffle, bilk - discomfited, frustrated.
thwarted.
Unsuccessful