Un·sta·ble a. 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.
◄ ►
unstableness
n : the quality or attribute of being unstable and irresolute
[syn: instability] [ant: stability, stability]