Loneliness /(?)/

Lone·li·ness

Loneliness

n.
  1. The condition of being lonely; solitude; seclusion.
  2. The state of being unfrequented by human beings; as, the loneliness of a road.
  3. Love of retirement; disposition to solitude.
    I see The mystery of your loneliness.
  4. A feeling of depression resulting from being alone.