SLIPPIER is a playable word

slippy Scrabble® Dictionary

adjective
slippier, slippiest
slippery
(adverb) slippily
106 Playable Words can be made from "SLIPPIER"
   2-Letter Words (9 found)
   3-Letter Words (24 found)
   6-Letter Words (8 found)
   7-Letter Words (4 found)
   8-Letter Words (1 found)