SLIEST is a playable word

sly Scrabble® Dictionary

adjective
slier, sliest or slyer, slyest
crafty
(adverb) slyly

64 Playable Words can be made from "SLIEST"

   2-Letter Words (9 found)

   3-Letter Words (19 found)

   5-Letter Words (11 found)

   6-Letter Words (4 found)