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Synonyms

instability

American  
[in-stuh-bil-i-tee] / ˌɪn stəˈbɪl ɪ ti /

noun

  1. the quality or state of being unstable; lack of stability or firmness.

  2. the tendency to behave in an unpredictable, changeable, or erratic manner.

    emotional instability.


instability British  
/ ˌɪnstəˈbɪlɪtɪ /

noun

  1. lack of stability or steadiness

  2. tendency to variable or unpredictable behaviour

  3. physics a fast growing disturbance or wave in a plasma

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of instability

1375–1425; late Middle English instabilite < Latin instabilitās. See in- 3, stability

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Scientists now accept instability of volcanoes as a major hazard.

From Literature

Sir Keir said he and his Japanese counterpart agreed on the need to respond with "strength and clarity" to increasing instability in the world, and thanked her for "steadfast leadership in supporting Ukraine".

From BBC

Sabalenka was the heavy favourite to beat unseeded American underdog Madison Keys and claim a third straight Melbourne title, but the instability of her second serve returned in a three-set defeat.

From BBC

Benjamin Netanyahu has long seen Iran as the key threat facing Israel, and the biggest source of instability in the Middle East.

From BBC

Confusing one for the other is how investors end up buying into instability rather than opportunity.

From MarketWatch