The Collaborative International Dictionary of English v.0.48:

Citified \Cit"i*fied\, a. [City +-fy.]
   Aping, or having, the manners of a city.
   [1913 Webster]

WordNet (r) 3.0 (2006):

citified
    adj 1: being or having the customs or manners or dress of a city
           person [syn: citified, cityfied, city-bred, city-
           born]