DERIDER is a playable word

derider Scrabble® Dictionary

noun
pl. deriders
one that derides
42 Playable Words can be made from "DERIDER"
   2-Letter Words (5 found)
   3-Letter Words (10 found)
   4-Letter Words (12 found)
   5-Letter Words (9 found)
   6-Letter Words (3 found)
   7-Letter Words (3 found)