depression
Cross references:
1. sadness
de.pres.sion \di-'presh-*n\ n 1a: the angular distance of a celestial
object below the horizon 1b: the angular distance of an object beneath the
horizontal plane 2: an act of depressing or a state of being depressed :
as 2a: a pressing down : LOWERING 2b1: a state of feeling sad : DEJECTION
2b2: a psychoneurotic or psychotic disorder marked by sadness, inactivity,
and self-depreciation 2c1: a reduction in activity, amount, quality, or
force 2c2: a lowering of vitality or functional activity 3: a depressed
place or part : HOLLOW 4: LOW 5: a period of low general economic
activity marked esp. by unemployment