UNFASTENING is a playable word

unfasten Scrabble® Dictionary

verb
unfastened, unfastening, unfastens
to release from fastenings

516 Playable Words can be made from "UNFASTENING"

   2-Letter Words (27 found)

   3-Letter Words (95 found)

   9-Letter Words (2 found)

   11-Letter Words (1 found)