GUILEFUL is a playable word

guileful Scrabble® Dictionary

adjective
cunning
48 Playable Words can be made from "GUILEFUL"
   2-Letter Words (6 found)
   3-Letter Words (19 found)
   4-Letter Words (17 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)
   8-Letter Words (1 found)