ANTONYM is a playable word

antonym Scrabble® Dictionary

noun
pl. antonyms
a word opposite in meaning to another
64 Playable Words can be made from "ANTONYM"
   2-Letter Words (16 found)
   3-Letter Words (24 found)
   4-Letter Words (15 found)
   5-Letter Words (7 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)