OUTSULKS is a playable word

outsulk Scrabble® Dictionary

verb
outsulked, outsulking, outsulks
to surpass in sulking
59 Playable Words can be made from "OUTSULKS"
   2-Letter Words (7 found)
   3-Letter Words (12 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)