unhappiness

n.

emotions experienced when not in a state of well-being

同义词：sadness

state characterized by emotions ranging from mild discontentment to deep grief

Unhappiness and Unemployment
Unhappiness and Crime: Evidence from South Africa
Work, happiness, and unhappiness
Work, happiness, and unhappiness.
A paper on unhappiness and unemployment in Germany
Happiness and unhappiness in east and west: themes and variations.
Obesity, Unhappiness, and the Challenge of Affluence: Theory and Evidence
The Mindful Way through Depression: Freeing Your Self from Chronic Unhappiness
Review of The mindful way through depression: Freeing yourself from chronic unhappiness.
How Social Relations and Structures Can Produce Happiness and Unhappiness: An International Comparative Analysis