REFLEX is a playable word

reflex Scrabble® Dictionary

verb
reflexed, reflexing, reflexes
to bend back
27 Playable Words can be made from "REFLEX"
   2-Letter Words (6 found)
   3-Letter Words (10 found)
   4-Letter Words (8 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)