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"
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"
built,
reinforced (used of soaps or cleaning agents) having a substance (an abrasive or filler) added to increase effectiveness; "the built liquid detergents"
developed being changed over time so as to be e.g. stronger or more complete or more useful; "the developed qualities of the Hellenic outlook"; "they have very small limbs with only two fully developed toes on each"
improved -
become or made better in quality; "was proud of his improved grades"; "an improved viewfinder"
improved -
(of land) made ready for development or agriculture by clearing of trees and brush; "improved farmlands"
