Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The quality or condition of being unstable.

from The Century Dictionary.

  • noun The state of being unstable; want of stability or firmness, physical or moral; liability to fall, fail, give way, or suffer change.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The quality or condition of being unstable; lack of stability, firmness, or steadiness; liability to give way or to fail; insecurity; precariousness.
  • noun Lack of determination of fixedness; inconstancy; fickleness; mutability; changeableness

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun uncountable The quality of being unstable.
  • noun physics, countable A state that is not in equilibrium, or in which a small change has a large irreversible effect.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an unstable order
  • noun unreliability attributable to being unstable
  • noun the quality or attribute of being unstable and irresolute
  • noun a lack of balance or state of disequilibrium

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

in- +‎ stability

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