DictionaryinsularClosed to outside influences
adjective

insular

IN-suh-ler/ˈɪnsələr/

Of an island separated from the surrounding world.

The insular settlement is surrounded by open sea.

Three cottages occupy a small rocky island separated from the distant mainland by open sea.
Etymology

An island supplies the image of being cut off from other people. “Belonging to an island” became a description of outlooks narrowed by isolation and limited contact with others.

In context

ORCA Media31:40
my insular New England view of the immigration debate and what was it and to experience firsthand what it was like on other borders
Bridgeside Books - Extempo 10/24/19

More examples

  • The biologist compares insular habitats with those on the mainland.
  • The researchers study insular wildlife on the remote island.
  • Trade brings new influences to the once insular village.

Forms

insular

insularity noun — Isolation from outside contact or influence.

Similar words

isolated
Emphasizes separation or lack of contact, not necessarily narrow-mindedness.
provincial
Emphasizes a narrow local outlook rather than island geography.