1. The quality or state of being isolated, narrow-minded, or limited in perspective; lack of broad understanding or openness to other viewpoints.
Usage: Usually plural; refers to instances or manifestations of insular thinking or behavior
2. The condition of being geographically isolated or separated, as on an island.
Usage: Less common; refers to physical or geographic isolation

Examples

• The insularities of small communities sometimes prevent them from embracing new ideas.
• His insularities made it difficult for him to understand perspectives different from his own.
• The insularities of island nations have historically shaped their unique cultures.
• Breaking down insularities requires exposure to diverse viewpoints and experiences.
• The insularities of the region reflected centuries of limited contact with the outside world.
• She worked to overcome the insularities in her thinking by traveling and reading widely.