GAINSAYING is a playable word

gainsay Scrabble® Dictionary

verb
gainsaid, gainsaying, gainsays
to deny
112 Playable Words can be made from "GAINSAYING"
   2-Letter Words (12 found)
   3-Letter Words (31 found)
   6-Letter Words (5 found)
   7-Letter Words (6 found)
   10-Letter Words (1 found)