IPA: /ˈdɛzəleɪtɪŋli/
KK: /dɛsəˈleɪtɪŋli/
In a way that causes a feeling of emptiness or destruction.
The landscape was desolatingly barren after the wildfire.
Desolatingly → It is formed from "desolatus" (from Latin, meaning abandoned or deserted) and the suffix "-ly" (meaning in a manner). The word "desolatingly" means in a manner that causes abandonment or emptiness.
Think of something that makes a place feel 'abandoned' or 'deserted' — that's what 'desolatingly' conveys.