narrowly restricted in outlook or scope; "little sympathy with parochial mentality"; "insular attitudes toward foreigners"
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
relating to or characteristic of or situated on an island; "insular territories"; "Hawaii's insular culture"
the mental attitude that something is believable and should be accepted as true; "he gave credence to the gossip"; "acceptance of Newtonian mechanics was unquestioned for 200 years"