1. Incapable of being ascended
   - unclimbable

Antonym: scalable

• coulter
• Coumadin
• coumara nut
• coumarin
• coumarone
• coumarone resin
• coumarone-indene resin
• Coumarouna
• Coumarouna odorata
• council
• Council Bluffs
• council board
• council chamber
• council house
• council member
• Council of Basel-Ferrara-Florence
• Council of Chalcedon
• Council of Constance
• Council of Economic Advisors
• Council of Ephesus
• Council of Europe
• Council of Trent
• Council of Vienne
• Council on Environmental Policy
• council table