UNSTABLE

unstable. Unstable, a. not fixed, inconstant, irresolute

---

Un‐sta″ble (?), a. [[Cf. Instable.]] Not stable; not firm, fixed, or constant; subject to change or overthrow. — Un‐sta″ble‐ness, n. Chaucer. Unstable equilibrium. See Stable equilibrium, under Stable.