usage: 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. improved, better (vs. worse)
usage: become or made better in quality; "was proud of his improved grades"; "an improved viewfinder"
3. improved, cleared (vs. uncleared)
usage: (of land) made ready for development or agriculture by clearing of trees and brush; "improved farmlands"