Adjective insular has 3 senses
  1. insular - relating to or characteristic of or situated on an island; "insular territories"; "Hawaii's insular culture"
  2. insular - suggestive of the isolated life of an island; "an exceedingly insular man; so deeply private as to seem inaccessible to the scrutiny of a novelist"- Leonard Michaels
    Antonym:
    public (indirect, via private)
  3. insular, parochial - narrowly restricted in outlook or scope; "little sympathy with parocial mentality"; "insular attitudes toward foreigners"
    Antonym: cosmopolitan (indirect, via provincial)
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