Related Clues:

• Waterless
• Barren
• Like 20-Across
• Like the surface of Mercury
• Far from arable
• In need of water
• Unstimulating
• Like most of Oman
• Like ideal cactus climate
• Like a desert
• Extra dry
• Gobi-ish
• Like the Kalahari
• Like a Southwestern desert
• Completely uninteresting