SCREWIER is a playable word

screwy Scrabble® Dictionary

adjective
screwier, screwiest
not sensible
87 Playable Words can be made from "SCREWIER"
   2-Letter Words (7 found)
   3-Letter Words (23 found)
   6-Letter Words (7 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)