If you are disheartened, you feel disappointed about something and have less confidence or less hope about it than you did before. He was disheartened by their hostile reaction. = discouraged. disappointed, so that you lose hope and the determination to continue doing something
made less hopeful or enthusiastic; "desperate demoralized people looking for work"; "felt discouraged by the magnitude of the problem"; "the disheartened instructor tried vainly to arouse their interest"