From Longman Dictionary of Contemporary Englishinsularin‧su‧lar /ˈɪnsjələ $ ˈɪnsələr, ˈɪnʃə-/ adjective 1 PREJUDICEDinterested in your own group, country, way of life etc and no others – used to show disapproval → parochial an insular community the insular world of the law2 formalSGSAN relating to or like an island —insularity /ˌɪnsjəˈlærəti $ -sə-, -ʃə-/ noun [uncountable]
Examples from the Corpus
insular• Landres is a small, insular community in the Midwest.Origin insular (1500-1600) Late Latin insularis, from Latin insula “island” 