Definition of instabilitynext
as in unsteadiness
the quality or state of not being firmly fixed in position the instability of the bridge became tragically apparent when it suddenly collapsed

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of instability Iran, like Israel, has every incentive to pursue policies that perpetuate instability. Marc Lynch, Foreign Affairs, 18 Aug. 2026 Types of chaos The Indian researchers focused two types of chaos typically seen in fluids, the Kelvin-Helmholtz instability and the Rayleigh-Taylor instability. Ameya Paleja, Interesting Engineering, 18 Aug. 2026 The outbreak has gained momentum since it was declared on May 15, as weak health infrastructure, community resistance and instability hinder the effort to identify and respond to cases. CNN Money, 17 Aug. 2026 Thousands of migrants from across Africa and beyond travel to Morocco each year, fleeing conflict, poverty and instability and seeking a route into Europe. ABC News, 16 Aug. 2026 See All Example Sentences for instability
Recent Examples of Synonyms for instability
Noun
  • Dogs may also experience unsteadiness or lack of coordination, and in severe cases, seizures or coma may occur.
    Gina Kalsi, PEOPLE, 13 July 2026
  • Unlike dizziness — which causes lightheadedness or unsteadiness — vertigo feels more like spinning.
    Lindsey Bever, Washington Post, 27 May 2026
Noun
  • But an Iranian diplomat promptly rejected this, saying such a visit can only come after a final deal — a denial that highlighted the precariousness of the ongoing negotiations.
    ABC News, ABC News, 24 June 2026
  • The shift isn’t merely spatial but symbolic, representing what Yeon sees as the precariousness of human civilization itself.
    Naman Ramachandran, Variety, 16 May 2026
Noun
  • Never let these doubts or fear or insecurity impact your behaviour or your belief.
    Andy Naylor, New York Times, 19 Aug. 2026
  • The mercurial nature of Sherman’s coverage can inspire insecurity in her subjects.
    Aidan McLaughlin, Vanity Fair, 19 Aug. 2026

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Cite this Entry

“Instability.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instability. Accessed 24 Aug. 2026.

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