MISKNOWN is a playable word

misknow Scrabble® Dictionary

verb
misknew, misknown, misknowing, misknows
to fail to understand or recognize
99 Playable Words can be made from "MISKNOWN"
   2-Letter Words (15 found)
   5-Letter Words (12 found)
   6-Letter Words (2 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)