'Slippery' definitions:

Definition of 'slippery'

From: WordNet
adjective
Causing or tending to cause things to slip or slide; "slippery sidewalks"; "a slippery bar of soap"; "the streets are still slippy from the rain" [syn: slippery, slippy] [ant: nonslippery]
adjective
Not to be trusted; "how extraordinarily slippery a liar the camera is"- James Agee [syn: slippery, tricky]

Definition of 'Slippery'

From: GCIDE
  • Slippery \Slip"per*y\, a. [See Slipper, 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. [1913 Webster]
  • 2. Not affording firm ground for confidence; as, a slippery promise. [1913 Webster]
  • The slippery tops of human state. --Cowley. [1913 Webster]
  • 3. Not easily held; liable or apt to slip away. [1913 Webster]
  • The slippery god will try to loose his hold. --Dryden. [1913 Webster]
  • 4. Liable to slip; not standing firm. --Shak. [1913 Webster]
  • 5. Unstable; changeable; mutable; uncertain; inconstant; fickle. "The slippery state of kings." --Denham. [1913 Webster]
  • 6. Uncertain in effect. --L'Estrange. [1913 Webster]
  • 7. Wanton; unchaste; loose in morals. --Shak. [1913 Webster]
  • 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. [1913 Webster]

Synonyms of 'slippery'

From: Moby Thesaurus