1. 
[syn: developed, highly-developed]
The Collaborative International Dictionary of English v.0.48:
highly-developed \highly-developed\ adj.
   1. very complex or intricate; -- used especially of
      technology.
   Syn: advanced.
        [WordNet 1.5 +PJC]
   2. having most of its industrial production in the most
      modern state; -- used of countries and societies.
      Contrasted with undeveloped or developing.
   Syn: industrialized, advanced, industrial.
        [WordNet 1.5 +PJC]
WordNet (r) 3.0 (2006):
highly-developed
    adj 1: (used of societies) having high industrial development;
           "developed countries" [syn: developed, highly-
           developed]