Slippery /(?)/

Slip·per·y

Slippery

a.
  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.
    — Cowley.
  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.
  6. Uncertain in effect.
  7. Wanton; unchaste; loose in morals.

Phrases & Compounds
Slippery elm
An American tree (Ulmus fulva) with a mucilagenous and slightly aromatic inner bark which is sometimes used medicinally; also, the inner bark itself