Definition of insular adjective from the Oxford Advanced American Dictionary

     

    insular

     adjective
    adjective
    NAmE//ˈɪnsələr//
     
     
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  1. 1 (disapproving) only interested in your own country, ideas, etc. and not in those from outside The British are often accused of being insular.
  2. 2(technology) connected with an island or islands the coastal and insular areas
NAmE//ˌɪnsəˈlærət̮i//
 
noun [uncountable]
See the Oxford Advanced Learner's Dictionary entry: insular