stabilit

Stabilit refers to the property of a system to resist perturbations or to return to a defined equilibrium after disturbance. In many languages, the noun is written stabilitet or stabilität; in English it is stability. The term derives from Latin stabilis, meaning firm or fixed.

In physics and engineering, stability concerns whether a system in an equilibrium state remains near that state when disturbed. Static stability means the system remains at a minimum of potential energy; unstable or marginally stable configurations move away from that state. Dynamic stability concerns how trajectories behave over time, with criteria such as Lyapunov stability, asymptotic stability, or BIBO stability.

Chemistry and materials science address chemical and thermal stability: compounds that resist decomposition, corrosion, or reaction under given conditions; shelf life depends on stability against environmental factors.

Economics and political science use stability to describe predictable, long-term behavior: low inflation, steady growth, or durable governance; instability can trigger volatility and disruption.

Other uses include ecological stability, where ecosystems resist or recover from perturbations; and mathematical stability, in dynamical systems and topology, where properties persist under small perturbations or structural changes.