In·sta·bil·i·ty n.; pl. Instabilities
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.
2. Lack of determination of fixedness; inconstancy; fickleness; mutability; changeableness; as, instability of character, temper, custom, etc.
Syn: -- Inconstancy; fickleness; changeableness; wavering; unsteadiness; unstableness.
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