STEPLESS is a playable word

stepless Scrabble® Dictionary

adjective
lacking steps (structures for passing from one level to the next)
82 Playable Words can be made from "STEPLESS"
   2-Letter Words (5 found)
   3-Letter Words (16 found)
   6-Letter Words (9 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)