/ ˈmuːdi; NAmE / adjective ( mood·ier , moodi·est )
1.
having moods that change quickly and often :
Moody people are very difficult to deal with.
2.
bad-tempered or upset, often for no particular reason
SYN grumpy :
Why are you so moody today?
3.
( of a film / movie, piece of music or place ) suggesting particular emotions, especially sad ones
► mood·ily / -ɪli; NAmE / adverb :
He stared moodily into the fire.
► moodi·ness noun [ U ]
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WORD ORIGIN
Old English mōdig brave or wilful (see mood state of mind , -y ).