Melancholia is a feeling of deep, long-lasting sadness, and in mental health it often refers to a severe form of depression with loss of pleasure and emotional responsiveness. It can also be used more broadly to describe a gloomy or sorrowful mood.

Quick Scoop

In modern clinical use, melancholia usually means melancholic depression. Common signs include:

  • Loss of interest or pleasure in almost everything.
  • Sleep changes, especially early-morning waking or insomnia.
  • Appetite loss or weight loss.
  • Strong guilt, hopelessness, or feeling emotionally “flat.”

Word Meaning

The word comes from older ideas about “black bile,” which ancient medicine thought caused sadness. Today, it’s mostly a psychological and clinical term rather than a physical one.

When It Matters

If “melancholia” sounds like what you or someone else is experiencing and it includes thoughts of self-harm or suicide, it’s important to seek urgent professional help right away.

If you want, I can also give you a simple everyday definition , a clinical definition , or the difference between melancholia and normal sadness.