MUCKIER is a playable word

mucky Scrabble® Dictionary

adjective
muckier, muckiest
filthy
60 Playable Words can be made from "MUCKIER"
   2-Letter Words (8 found)
   3-Letter Words (21 found)
   5-Letter Words (4 found)
   6-Letter Words (3 found)
   7-Letter Words (1 found)