The monster is a character in Frankenstein who exhibits despondency.
Despondency is a state of great despair. Almost every character in Frankenstein is despondent, but the monster always seems the worst off to me. He was created and then abandoned by Frankenstein. Considered hideous by most, he never had a chance to develop companionship with anyone. Since he was completely on his own from his original creation, he never had anyone to help him through what he was feeling.
The monster is despondent because he is overwhelmed by his very senses.
Sometimes I wished to express my sensations in my own mode, but the uncouth and inarticulate sounds which broke from me frightened me into silence again. (Vol 2, Ch 3, etext ch 11, p. 54)
The monster is all alone and trying to make sense of the world. He is frightened by his very self. This is a terrible thing. No wonder he is so despondent! We feel more sympathy for the monster though, because the despondency is not his fault. It is a result of Victor’s careless actions in abandoning him.
The poor monster is also hunted by Victor, which makes things even worse. The monster accuses him of making him “wretched” and tells him that he is “am miserable beyond all living things” (p. 51).
Yet you, my creator, detest and spurn me, thy creature, to whom thou art bound by ties only dissoluble by the annihilation of one of us. (Vol 2, Ch 2, etext ch 10, p. 51)
The monster is miserable because he has no one. He also feels betrayed by Victor, his creator. That Victor is also incredibly despondent does not matter much to him. They are both of them miserable, and meet in a desolated and isolated place that reflects their misery.