Melancholia

[,melən'kəʊlɪə] or [,mɛlən'kolɪə]

Definition

(noun.) extreme depression characterized by tearful sadness and irrational fears.

Checker: Wendy--From WordNet

Definition

(n.) A kind of mental unsoundness characterized by extreme depression of spirits, ill-grounded fears, delusions, and brooding over one particular subject or train of ideas.

Checker: Micawber