a.

1. 島嶼的，海島的
2. 島民的；具有島民特點的
3. 孤立的
4. 與世隔絕的

adj.

1. uninterested in ideas, cultures, etc. other than one's own; narrow-minded.
   ▸lacking contact with other people.
2. relating to or from an island.
   ▸(of climate) equable because of the influence of the sea.
3. Anatomy  relating to the insula of the brain.