Meaning of insular

(adj) relating to or characteristic of or situated on an island; "insular territories"; "Hawaii's insular culture"

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

narrowly restricted in outlook or scope; "little sympathy with parochial mentality"; "insular attitudes toward foreigners"