SULKIER is a playable word

sulky Scrabble® Dictionary

adjective
sulkier, sulkiest
sullenly aloof or withdrawn
(adverb) sulkily
noun
pl. sulkies
a light horse-drawn vehicle
96 Playable Words can be made from "SULKIER"
   2-Letter Words (9 found)
   3-Letter Words (27 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)