unimprovedˈ adjective

1. Not made better
2. Not cultivated, cleared or built upon
3. Not put to use

• tileries
• tilers
• tilery
• tiles
• tile stone
• Tilia
• Tiliaceae
• tiliaceous
• tiling
• tilings
• till
• tillable
• tillage
• tillages
• tillandsia
• tillandsias
• till doomsday
• tilled
• tiller
• tiller-chain
• tiller-chains
• tillered
• tillering
• tillerless
• tiller-rope