Quiescent (a.) : Being in a state of repose; at rest; still; not moving;
as, a quiescent body or fluid.
Quiescent (a.) : Not ruffed with passion; unagitated; not in action; not excited; quiet; dormant; resting.
Quiescent (a.) : Not sounded; silent; as, y is quiescent in "day" and "say."
Quiescent (n.) : A silent letter.