- (of land) not cleared of trees and brush; in the wild or natural state
"a farm with 50 acres of unimproved and 68 acres of improved land"
- not made more desirable or valuable or profitable; especially not made ready for use or marketing
"taxes on unimproved land are low"
"unimproved dirt roads"
- For the purposes of paragraph 1(b), ‘building land’ shall mean any unimproved or improved land defined as such by the Member States.