(1):
(a.) Not easily held; liable or apt to slip away.
(2):
(a.) Having the quality opposite to adhesiveness; allowing or causing anything to slip or move smoothly, rapidly, and easily upon the surface; smooth; glib; as, oily substances render things slippery.
(3):
(a.) Wanton; unchaste; loose in morals.
(4):
(a.) Uncertain in effect.
(5):
(a.) Liable to slip; not standing firm.
(6):
(a.) Not affording firm ground for confidence; as, a slippery promise.
(7):
(a.) Unstable; changeable; mutable; uncertain; inconstant; fickle.