Noun slipperiness has 2 senses
  1. slickness, slick, slipperiness, slip - a slippery smoothness; "he could feel the slickness of the tiller"
    --1 is a kind of smoothness
  2. rascality, shiftiness, slipperiness, trickiness - the quality of being a slippery rascal
    --2 is a kind of dishonesty
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