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Noun: instability  ,in-stu'bi-li-tee
  1. The state or quality of being politically unstable
  2. Unreliability attributable to being unstable
  3. A lack of balance or state of disequilibrium
    "a hormonal instability";
    - imbalance, unbalance
  4. The quality or attribute of being unstable and irresolute
    - unstableness

Derived forms: instabilities

Type of: disequilibrium, disorder, flakiness [informal], undependability, undependableness, unreliability, unreliableness, unsteadiness

Antonym: stability, stableness

Encyclopedia: Instability