UNBUTTONING is a playable word

unbutton Scrabble® Dictionary

verb
unbuttoned, unbuttoning, unbuttons
to unfasten the buttons of
111 Playable Words can be made from "UNBUTTONING"
   2-Letter Words (14 found)
   5-Letter Words (11 found)
   7-Letter Words (5 found)
   8-Letter Words (2 found)
   9-Letter Words (1 found)
   11-Letter Words (1 found)