UNLEARN is a playable word

unlearn Scrabble® Dictionary

verb
unlearned or unlearnt, unlearning, unlearns
to put out of one's knowledge or memory
63 Playable Words can be made from "UNLEARN"
   2-Letter Words (13 found)
   3-Letter Words (18 found)
   5-Letter Words (7 found)
   6-Letter Words (4 found)
   7-Letter Words (1 found)