When you feel disheartened you feel less hopeful, dissappointed, or heart broken.

Disheartening plea, suffocating sea, interrogating me, the hanging tree,

It is quite disheartening to see this arable land lie fallow.

Refusing to be dishearteded by her early failures to find a summer job, Lucy made up her mind to try again.

We lost the first three games, but we refused to become disheartened, and we improved enough to have a winning season.

Max dislikes his father in Freak the Mighty. The reason for this, is because his father does not believe in anything that he says or does, which is disheartening.