DUSTIEST is a playable word

dusty Scrabble® Dictionary

adjective
dustier, dustiest
full of dust
115 Playable Words can be made from "DUSTIEST"
   2-Letter Words (12 found)
   3-Letter Words (27 found)
   6-Letter Words (9 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)