o ‧ ver ‧ de ‧ vel ‧ oped /ˌəʊvədɪˈveləpt◂ $ ˌoʊvər-/ BrE AmE adjective
1 . if a city or area is overdeveloped, too many houses, buildings, roads etc have been built there:
an overdeveloped country
2 . too great or large:
You have an overdeveloped sense of duty.