• WordNet 3.6
    • n instability the quality or attribute of being unstable and irresolute
    • n instability unreliability attributable to being unstable
    • n instability an unstable order
    • n instability a lack of balance or state of disequilibrium "a hormonal imbalance"
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Webster's Revised Unabridged Dictionary
    • Instability Lack of determination of fixedness; inconstancy; fickleness; mutability; changeableness; as, instability of character, temper, custom, etc.
    • Instability The quality or condition of being unstable; lack of stability, firmness, or steadiness; liability to give way or to fail; insecurity; precariousness; as, the instability of a building.
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Century Dictionary and Cyclopedia
    • n instability The state of being unstable; want of stability or firmness, physical or moral; liability to fall, fail, give way, or suffer change.
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Chambers's Twentieth Century Dictionary
    • n Instability in-sta-bil′i-ti want of steadiness or firmness: inconstancy, fickleness: mutability
    • ***


  • Seneca
    “Whatever has overstepped its due bounds is always in a state of instability.”


Webster's Revised Unabridged Dictionary
L. instabilitas,: cf. F. instabilité,


In literature:

He had brought her here by his lying, his instability, his uncertain temperament.
"The "Genius"" by Theodore Dreiser
One of the guards, whose name, I think, was Smith, had a droop to his legs and an instability about the knees which were highly enjoyable.
"A Guest at the Ludlow and Other Stories" by Edgar Wilson (Bill) Nye
All showing slight emotional instabilities when checked against the optimum score of a spaceman.
"Perfect Control" by Richard Stockham
Paul felt a sense of instability returning.
"Human Error" by Raymond F. Jones
The resultant situation, being profoundly unsatisfactory, would also be instable.
"Essays in Radical Empiricism" by William James
There is fatal disease in the race, a disease of instability and cruelty and violence.
"Shock Treatment" by Stanley Mullen
But an element of instability was present in the being who occupied the summit of the animal scale.
"The Origin of the World According to Revelation and Science" by John William Dawson
All his instability of character came from his imagination.
"The Duchess of Wrexe" by Hugh Walpole
Another line of argument is then entered upon, in farther corroboration of the instability of species.
"Principles of Geology" by Charles Lyell
These are cleverly employed in order to heighten the impression of its instability.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5" by Various

In news:

There is mounting evidence that our vast inequalities may breed instability and blunt the nation's economic growth.
Japan's political instability continues as it faces another general election.
France will stand against instability in Lebanon.
'Inequality and Instability ,' by James K Galbraith.
Libyan Interim Leader On Recovery, Instability .
Egypt soccer violence highlights instability under military rule.
World's crises help increase global instability .
Top four ways Congo's instability affects the world.
Kyrgyzstan Sees Instability at End of Afghan Mission.
Actor a powerful force of instability in thriller.
Obama's Global Arc of Instability The Nation.
Effectively reduce or eliminate servo instability without increasing position errors or decreasing performance.
Path of Least Instability .
Instability is just another way of saying there is upward motion or lift in the atmosphere.
Instability in the atmosphere is often found preceding a front.

In science:

Although the ADM system tends to be more susceptible to instabilities, it also tends to be more accurate before these instabilities suddenly arise.
Modeling gravitational radiation from coalescing binary black holes
Finally, although the noninstantaneous nature of nonlinearity does not affect the absolute instability threshold, it should complicate the experimental observation of the instability phenomenon.
Instability of speckle patterns in random media with noninstantaneous Kerr nonlinearity
The instability near the gCFL onset eventually disappears as the temperature grows, while the instability at larger M 2 s /µ goes further into the 2SC phase.
Analytical and numerical evaluation of the Debye and Meissner masses in dense neutral three-flavor quark matter
In other words, if the electron terms are absent and µe is chosen to be positive, say ∼ 10 MeV, the A1,2 instability would disappear, while there would remain the instability for other gluons.
Analytical and numerical evaluation of the Debye and Meissner masses in dense neutral three-flavor quark matter
As we show below, these models generically suffer from an instability which we label AZK-instability.
Stable Models of superacceleration