(1):
(a.) Changeable; unstable; fickle.
(2):
(a.) Moving with ease and smoothness in uttering words; of rapid speech; nimble in speaking; glib; as, a flippant, voluble, tongue.
(3):
(a.) Having the power or habit of turning or twining; as, the voluble stem of hop plants.
(4):
(a.) Easily rolling or turning; easily set in motion; apt to roll; rotating; as, voluble particles of matter.