insular
Definitions
Ignorant of or uninterested in cultures, ideas, or peoples outside one's own experience.
Relating to or resembling an island; isolated or detached.
Examples
The island community maintained an insular culture that remained largely unchanged for centuries.
His insular attitude made it difficult for him to accept new ideas from people outside his immediate circle.
Synonyms
isolated narrow-minded parochial provincial detached sectarian limited
Antonyms
cosmopolitan broad-minded tolerant open worldly inclusive unrestricted