SUBLEVELS is a playable word

sublevel Scrabble® Dictionary

noun
pl. sublevels
a lower level
80 Playable Words can be made from "SUBLEVELS"
   2-Letter Words (4 found)
   3-Letter Words (21 found)
   6-Letter Words (7 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)