IPA: /ˈdɛzəleɪtnəs/
KK: /ˈdɛzəleɪtnəs/
The condition of being empty, lonely, or without hope, often referring to a place that is deserted or lacking life.
After the storm, the desolateness of the landscape was striking, with no signs of life in sight.
Desolateness is formed from "desolate" (from Latin "desolatus", meaning abandoned or forsaken) and the suffix "-ness" (meaning the state or quality of). The word describes the state of being abandoned or in a forsaken condition.
Think of the word 'desolate' which means abandoned, and remember that 'desolateness' refers to the state of being abandoned or forsaken.