Instability

Part of speech: noun (n.)

1. 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.

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

Synonyms: Inconstancy; fickleness; changeableness; wavering; unsteadiness; unstableness.