from
The Collaborative International Dictionary of English v.0.48
Instability \In`sta*bil"i*ty\, n.; pl. {Instabilities}. [L.
instabilitas: cf. F. instabilit['e].]
[1913 Webster]
1. The quality or condition of being unstable; lack of
stability, firmness, or steadiness; liability to give way
or to fail; insecurity; precariousness; as, the
instability of a building.
[1913 Webster]
2. Lack of determination of fixedness; inconstancy;
fickleness; mutability; changeableness; as, instability of
character, temper, custom, etc. --Addison.
Syn: Inconstancy; fickleness; changeableness; wavering;
unsteadiness; unstableness.
[1913 Webster]