insular

American  

[in-suh-ler, ins-yuh-] / ˈɪn sə lər, ˈɪns yə- /

adjective

1. narrow-minded or illiberal; provincial.

   insular attitudes toward foreigners.

2. standing alone; detached; isolated.

   an insular building.

3. of or relating to an island or islands.

   a nation's insular possessions.

4. dwelling or situated on an island.

5. forming an island.

   insular rocks.

6. of, relating to, or characteristic of islanders or isolated people.

   insular tribes;

   insular sects.

7. Pathology. occurring in or characterized by one or more isolated spots, patches, or the like.

8. Anatomy. pertaining to an island of cells or tissue, as the islets of Langerhans.

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noun

1. an inhabitant of an island; islander.

insular British  

/ ˌɪnsjʊˈlærɪtɪ, ˈɪnsjʊlə /

adjective

1. of, relating to, or resembling an island

2. remote, detached, or aloof

3. illiberal or narrow-minded

4. isolated or separated

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Other Word Forms

• insularism noun
• insularity noun
• insularly adverb
• interinsular adjective
• transinsular adjective
• uninsular adjective

Etymology

Origin of insular

From the Late Latin word insulāris, dating back to 1605–15. See insula, -ar ¹

Explanation

Insular means "having a narrow view of the world," like insular people who never leave their small town, which enables them to believe that every place in the world is the same and the people are all just like them. The adjective insular comes from the Latin word insula, which means “island.” Perhaps less so in our current age of technological and relatively easy travel, island life can still be separated from the rest. That's why insular can mean "isolated from," like if you grew up in a big city then visited a rural place, you may be surprised that stores close early. Such an experience will help you expand your insular views.

Example Sentences

Warsh has described the Fed as insular and committed to outdated economic models.

From Barron's • Jan. 30, 2026

“We were extremely inconsiderate, insular and uncommunicative with each other that things like that always spilled on the sidelines,” the drummer said on the podcast.

From Los Angeles Times • Jan. 30, 2026

Inside the company, they’ve been both a source of pride for their creative genius and frustration due to their insular culture and budget-busting spending.

From The Wall Street Journal • Jan. 10, 2026

From a scientific perspective, warm social contact activates specialised C-tactile afferents and temperature-sensitive pathways that send signals to the insular cortex.

From Science Daily • Jan. 4, 2026

Supreme Court—the one branch of government charged with the responsibility of protecting “discrete and insular minorities” from the excesses of majoritarian democracy and guaranteeing constitutional rights for groups deemed unpopular or subject to prejudice.

From "The New Jim Crow" by Michelle Alexander

Related Words

• circumscribed
• isolated
• parochial
• petty