Instability meaning

ĭn'stə-bĭl'ĭ-tē
The definition of instability is a lack of stability or balance, or a tendency towards unpredictable or erratic behavior.

When you swing from one emotion to another, first feeling happy and then very sad for no reason, this is an example of emotional instability.

adjective
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The quality or condition of being unstable.

Economic instability; emotional instability.

noun
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Tendency to behave or react violently or erratically.

The instability of a chemical compound, emotional instability.

noun
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(uncountable) The quality of being unstable.
noun
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Lack of stability; unstableness.
  • Lack of firmness or steadiness.
  • Lack of determination; irresolution.
noun
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(physics, countable) A state that is not in equilibrium, or in which a small change has a large irreversible effect.
noun
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Origin of instability

  • From Middle French instabilité, from Latin instabilitas
    From Wiktionary