GAINSAY is a playable word

gainsay Scrabble® Dictionary

verb
gainsaid, gainsaying, gainsays
to deny
75 Playable Words can be made from "GAINSAY"
   2-Letter Words (12 found)
   3-Letter Words (26 found)
   5-Letter Words (10 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)