Synonyms for Desolation (same or very similar meaning)
WordNet sense 1 (the state of being decayed or destroyed):
devastationWordNet sense 2 (a bleak and desolate atmosphere):
bareness, bleakness, nakednessWordNet sense 3 (sadness resulting from being forsaken or abandoned):
loneliness, forlornnessFrom the ODE community, based on WordNetadd/edit