insularity

UK: /ˌɪnsjʊˈlærɪti/ US: /ˌɪnsəˈlærɪti, ˌɪnsjə-/

WordReference Random House Learner's Dictionary of American English © 2025

in•su•lar /ˈɪnsəlɚ, ˈɪnsyə-/   adj. 

1. of or relating to an island or islands:
   Japan's insular possessions.
2. narrow-minded; provincial:
   their insular attitudes toward education.

in•su•lar•i•ty /ˌɪnsəˈlærɪti, ˌɪnsyə-/  n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2025

in•su•lar  (in′sə lər, ins′yə-), adj. 

1. of or pertaining to an island or islands:
   insular possessions.
2. dwelling or situated on an island.
3. forming an island:
   insular rocks.
4. detached;
   standing alone;
   isolated.
5. of, pertaining to, or characteristic of islanders.
6. narrow-minded or illiberal;
   provincial:
   insular attitudes toward foreigners.
7. [Pathol.] occurring in or characterized by one or more isolated spots, patches, or the like.
8. [Anat.] pertaining to an island of cells or tissue, as the islets of Langerhans.

n. 

9. an inhabitant of an island;
   islander.

• Late Latin insulāris. See insula, -ar¹
• 1605–15

in′su•lar•ism, n. 
in′su•lar′i•ty, n. 
in′su•lar•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

insular / ˈɪnsjʊlə/ adjective

1. of, relating to, or resembling an island
2. remote, detached, or aloof
3. illiberal or narrow-minded
4. isolated or separated

Etymology: 17th Century: from Late Latin insulāris, from Latin insula island, isle

ˈinsularism, insularity / ˌɪnsjʊˈlærɪtɪ/ noun

ˈinsularly adverb