say it: in-suh-LER-i-tee
insularity is a noun meaning "the state of being isolated or detached". It carries one recorded sense.
the state of being isolated or detached
“the insulation of England was preserved by the English Channel”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for insularity come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.