The Swedish term "lynnig, retlig, trumpen" matches the English term "moody"

other swedish words that include "retlig" : english :
retlig fretful
retlig, otålig fretting
lättretlig irascible
retlig, lättretlig irritable
retlig waspish
other swedish words that include "trumpen" : english :
trumpen, dyster glum
vresig, trumpen sulky
trumpen, butter sullen