ATOMISM is a playable word

atomism Scrabble® Dictionary

noun
pl. atomisms
the theory that the universe is composed of simple, indivisible, minute particles
97 Playable Words can be made from "ATOMISM"
   2-Letter Words (18 found)
   3-Letter Words (30 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)