1. (n.) The state or quality of being an island or consisting of islands; insulation.

2. (n.) Narrowness or illiberality of opinion; prejudice; exclusiveness; as, the insularity of the Chinese or of the aristocracy.

Jim Crow ait alien apartheid archipelago atoll authoritarianism bar bigotry blind side blind spot blinders cay closed mind color bar continental island coral head coral island coral reef cramped ideas division ethnocentrism exclusiveness fanaticism foreigner hideboundness holm illiberality insularism insulation island island group islandology isle islet isolation key know-nothingism little-mindedness littleness mean mind meanness narrow sympathies narrow views narrow-mindedness narrowness nearsightedness oceanic island odium theologicum out-group outcast outsider parochialism persona non grata pettiness petty mind provincialism purblindness quarantine race hatred racial segregation reef sandbank sandbar seclusion segregation separation shortsightedness shut mind smallness snobbishness straitlacedness stranger stuffiness tightness uncatholicity xenophobia