QUINTICS is a playable word

quintic Scrabble® Dictionary

noun
pl. quintics
a type of mathematical function
72 Playable Words can be made from "QUINTICS"
   2-Letter Words (10 found)
   3-Letter Words (21 found)
   5-Letter Words (13 found)
   6-Letter Words (6 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)