In`su*lar"i*ty (?), n. [Cf. F. insularit'e.]
1.
The state or quality of being an island or consisting of islands; insulation.
The insularity of Britain was first shown by Agricola, who sent his fleet round it.
Pinkerton.
2.
Narrowness or illiberality of opinion; prejudice; exclusiveness; as, the insularity of the Chinese or of the aristocracy.
© Webster 1913.