instable

American  

[in-stey-buhl] / ɪnˈsteɪ bəl /

adjective

1. not stable; unstable.

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instable British  

/ ɪnˈsteɪbəl /

adjective

1. a less common word for unstable

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Etymology

Origin of instable

First recorded in 1375–1425; late Middle English word from Latin word instabilis. See in- ³, stable ²

Example Sentences

“If North Korea goes ahead with a nuclear test at a time when the global security situation is as instable as it is now, the country will face enormous criticism from international society, and the response will be more than just words,” Kwon said.

From Seattle Times

The eight people arrested were “fully aware of the instable situation of the dam,” the judge, Rodrigo Heleno Chaves, said in the arrest warrant, citing evidence collected over the last three weeks.

From New York Times

Some commentators compared the murder to the killing of Jo Cox, a British liberal legislator who was shot and stabbed to death by a mentally instable man inspired by far-right politics.

From The Wall Street Journal

“We have never been in an economically stabler position – and yet many people complain that they feel insecure. The GDR felt like a stable society to its citizens, but as a system it was instable. Now it is the other way around.”

From The Guardian

The vigorous immune microenvironment of microsatellite instable colon cancer is balanced by multiple counter-inhibitory checkpoints.

From Nature