1. in a manner showing sadness or displeasure because something did not meet expectations or hopes
Usage: formed from the adjective 'disappointed' with the adverbial suffix '-ly'

Examples

• She disappointedly put down the phone after hearing the concert was cancelled.
• He disappointedly shook his head when he saw the test results.
• The team disappointedly walked off the field after losing the championship game.
• She disappointedly stared at the empty gift box.
• He disappointedly closed the rejection letter and sighed.