Insular (adjective)

1. Relating to an island or isolated region.
2. Isolated or detached from the mainstream of society or culture.
3. Narrow-minded and resistant to new ideas or ways of life.

Origin:

Late 16th century: from latin insula 'island', + -ar1.

Examples:

1. The insular community was slow to adopt new technologies.
2. The insular mentality of the village prevented progress.
3. The insular attitude of the city's residents made it difficult for outsiders to fit in.
4. The insular culture of the island was preserved for centuries.
5. The insular lifestyle of the family was disrupted by the arrival of modern technology.