UNSOUND is a playable word

unsound Scrabble® Dictionary

adjective
unsounder, unsoundest
45 Playable Words can be made from "UNSOUND"
   2-Letter Words (9 found)
   3-Letter Words (17 found)
   4-Letter Words (13 found)
   5-Letter Words (5 found)
   7-Letter Words (1 found)