we insulate electrical wires.. by insulating , we are ISOLATING the wires from the environment...
insular = In Cellar...so u isolate
Insularity sounds like insulation. So narrow minded people are insulated i.e isolated from new thinking.
Insularity sounds like insulted the narrow-minded people
jin logo ne jesus ko SULI par chadaya vo.narrow minded the bcoz they didn't get his ideas.