The term 'desolate areas' can be summarized by two crossword solutions: WASTELANDS (10 letters) and WILDS (5 letters). WASTELANDS are barren, uninhabited areas that have been damaged by human activity or natural disasters. They are often characterized by a lack of vegetation, water, and other resources. WILDS, on the other hand, are areas of land that are largely untouched by humans and are home to a variety of wildlife. Both WASTELANDS and WILDS are considered desolate areas due to their lack of human habitation and resources.