The state of a place that is empty or where everything has been destroyed. (Cambridge Dictionary)
Grief, sadness. (Merriam – Webster)
Desolation is a feeling of great unhappiness and hopelessness. (Collins Dictionary)
If you refer to desolation in a place, you mean that it is empty and frightening, for example because it has been destroyed by a violent force or army. (Collins Dictionary)
A state of complete emptiness or destruction. (Oxford Dictionaries)
Great unhappiness or loneliness. (Oxford Dictionaries)
Desolation. Your Dictionary.
Desolate. Your Dictionary.