insular
adj
1 of an island 岛的; 岛上的: an insular climate, way of life 海岛的气候、 生活方式.
2 (derog 贬) narrow-minded and avoiding contact with others 偏狭的; 不愿与他人接触的
an insular attitude 偏狭的态度
insular habits and prejudices 狭隘的习性和偏见.
He loved to be told that one of his imaginary products was temporarily out of stock and he would faithfully promise to call again at some future date, but of course he never did.