apesadumbrado
adj.
distressed, grieved, gloomy, sad, depressed
apesadumbrar
v.
cause sorrow, grieve
apesadumbrarse
v.
grieve, mourn
apesadumbrado
= glum.
Ex: Children no less than adults are subject to fits of boredom, to times when they feel glum or restless when everything they usually enjoy lacks attraction, purpose or pleasure.