GNEISSIC is a playable word

gneiss Scrabble® Dictionary

noun
pl. gneisses
a type of rock
(adjective) gneissic
74 Playable Words can be made from "GNEISSIC"
   2-Letter Words (7 found)
   3-Letter Words (19 found)
   6-Letter Words (6 found)
   7-Letter Words (4 found)
   8-Letter Words (1 found)