Sullen

sullen [ SUHL-uh'n ]
[ adjective ]

MEANING :
1. sulky or silent resentment
2. somber or gloomy
3. sluggish

USAGE EXAMPLE 1 :
The child was in a sullen mood because he could not have his way.

USAGE EXAMPLE 2 :
My son is 15 years old and moody, uncommunicative, sullen and rude.