slippery

adjective

1. 1

   Of a surface, having low friction, often due to being covered in a non-viscous liquid, and therefore hard to grip, hard to stand on without falling, etc.

   “Oily substances render things slippery.”

2. 2

   (by extension) Evasive; difficult to pin down.

   “a slippery person”

3. 3

   Liable to slip; not standing firm.

4. 4

   Unstable; changeable; inconstant.

5. 5

   Wanton; unchaste; loose in morals.