|a.||1.||Not improved; not made better or wiser; not advanced in knowledge, manners, or excellence.|
|2.||Not used; not employed; especially, not used or employed for a valuable purpose; |
|3.||Not tilled, cultivated, or built upon; yielding no revenue; |
|Adj.||1.||unimproved - 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"|
improved - made more desirable or valuable or profitable; especially made ready for use or marketing; "new houses are springing up on an improved tract of land near the river"; "an improved breed"
|2.||unimproved - (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"; "unimproved woodlands"|