Meaning

adjective not made more desirable or valuable or profitable; especially not made ready for use or marketing

adjective (of land) not cleared of trees and brush; in the wild or natural state

originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English improved English unimproved From un- + improved.

Etymology from Wiktionary, CC BY-SA 3.0