FLUNKED is a playable word

flunk Scrabble® Dictionary

verb
flunked, flunking, flunks
to fail an examination or course
65 Playable Words can be made from "FLUNKED"
   2-Letter Words (9 found)
   3-Letter Words (24 found)
   5-Letter Words (6 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)