GAINSAYS is a playable word

gainsay Scrabble® Dictionary

verb
gainsaid, gainsaying, gainsays
to deny
99 Playable Words can be made from "GAINSAYS"
   2-Letter Words (12 found)
   3-Letter Words (28 found)
   6-Letter Words (5 found)
   7-Letter Words (3 found)
   8-Letter Words (2 found)