insular

adjective

• 1ignorant of or uninterested in cultures, ideas, or peoples outside one’s own experience:a stubbornly insular farming people
• lacking contact with other people:people living restricted and sometimes insular existences

• 2relating to or from an island:goods of insular origin
• relating to a form of Latin handwriting used in Britain and Ireland in the early Middle Ages:insular illumination of the 6th century
• (of climate) equable because of the influence of the sea.

• 3 Anatomy relating to the insula of the brain.