1.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.
2.Not affording firm ground for confidence; as, a slippery promise. "The slippery tops of human state."
3.Not easily held; liable or apt to slip away. "The slippery god will try to loose his hold."
4.Liable to slip; not standing firm.
5.Unstable; changeable; mutable; uncertain; inconstant; fickle. "The slippery state of kings."
7.Wanton; unchaste; loose in morals.
Slippery elm. (Bot.) (a)An American tree (Ulmus fulva) with a mucilagenous and slightly aromatic inner bark which is sometimes used medicinally; also, the inner bark itself.
(b)A malvaceous shrub (Fremontia Californica); so called on the Pacific coast.