In`sta*bil"i*ty (?), n.; pl. Instabilities (#). [L. instabilitas: cf. F. instabilit'e.]


The quality or condition of being unstable; want of stability, firmness, or steadiness; liability to give way or to fail; insecurity; precariousness; as, the instability of a building.


Lack of determination of fixedness; inconstancy; fickleness; mutability; changeableness; as, instability of character, temper, custom, etc.


Syn. -- Inconstancy; fickleness; changeableness; wavering; unsteadiness; unstableness.


© Webster 1913.

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