moody

 
Pronunciation: /ˈmuːdi/

adjective (moodier, moodiest)

  • (of a person) given to unpredictable changes of mood, especially sudden bouts of gloominess or sullenness: his moody adolescent brother
  • giving an impression of melancholy or mystery: grainy film which gives a soft, moody effect

Derivatives

moodily

adverb

moodiness

noun

Origin:

Old English mōdig 'brave or wilful' (see mood1, -y1)