ADDERS is a playable word

adder Scrabble® Dictionary

noun
pl. adders
a venomous snake
59 Playable Words can be made from "ADDERS"
   2-Letter Words (10 found)
   3-Letter Words (18 found)
   4-Letter Words (17 found)
   5-Letter Words (10 found)
   6-Letter Words (4 found)