Dictionary

instable

instable

adjective in·sta·ble \(ˌ)in-ˈstā-bəl\

Definition of INSTABLE

:  unstable

Origin of INSTABLE

Middle English, from Middle French or Latin; Middle French, from Latin instabilis, from in- + stabilis stable
First Known Use: 15th century

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March 02, 2015
chatoyant Hear it
Having a changeable luster or color
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