Sullen, gray skies.
An example of sullen is a child who dropped an ice cream on the ground.
An example of sullen is the black or dark clothing at a funeral.
The sullen current of a canal.
Other Word Forms
Origin of sullen
- Middle English solein from Anglo-Norman solein alone from sol single from Latin sōlus by oneself alone s(w)e- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition