disappointed
1. [ adjective ] disappointingly unsuccessful
Synonyms: frustrated discomfited foiled thwarted defeated
Examples:

"disappointed expectations and thwarted ambitions" "their foiled attempt to capture Calais" "many frustrated poets end as pipe-smoking teachers" "his best efforts were thwarted"

Related terms: unsuccessful
Similar spelling:   disappointedly
  disappoint
  disappointment
  disappointing
  disappointingly