SOLENESS is a playable word

soleness Scrabble® Dictionary

noun
pl. solenesses
the state of being the only one
90 Playable Words can be made from "SOLENESS"
   2-Letter Words (10 found)
   3-Letter Words (19 found)
   6-Letter Words (7 found)
   7-Letter Words (4 found)
   8-Letter Words (2 found)