UNSHIFTS is a playable word

unshift Scrabble® Dictionary

verb
unshifted, unshifting, unshifts
to release the shift key on a typewriter
108 Playable Words can be made from "UNSHIFTS"
   2-Letter Words (13 found)
   3-Letter Words (27 found)
   6-Letter Words (4 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)