insular

mastery
UK /ˈɪnsjələ/ US /ˈɪnsəlɚ/adjnoun

card 1 of 10 · context meaning

Which meaning best matches the use of 'insular' in this sentence?

There now is your insular city of the Manhattoes, belted round by wharves as Indian isles by coral reefs—commerce surrounds it with her surf.