moody
adjective
[ ˈmuːdi ]
• (of a person) given to unpredictable changes of mood, especially sudden bouts of gloominess or sullenness.
• "his moody adolescent brother"
Similar:
unpredictable,
temperamental,
emotional,
volatile,
capricious,
changeable,
mercurial,
unstable,
fickle,
flighty,
inconstant,
undependable,
unsteady,
erratic,
fitful,
impulsive,
sullen,
sulky,
morose,
gloomy,
glum,
moping,
mopey,
mopish,
depressed,
dejected,
despondent,
blue,
melancholic,
doleful,
dour,
dismal,
sour,
saturnine,
lugubrious,
introspective,
down in the dumps,
down in the mouth,
mardy,
mumpish,
kittle,
Origin:
Old English mōdig ‘brave or wilful’ (see mood1, -y1).
