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Meaning of instability

in•sta•bil•i•ty

Pronunciation: (in"stu-bil'i-tē), [key]
— n.
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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