WHIFFIEST is a playable word

whiffy Scrabble® Dictionary

adjective
whiffier, whiffiest
having an unpleasant smell
129 Playable Words can be made from "WHIFFIEST"
   2-Letter Words (16 found)
   6-Letter Words (6 found)
   7-Letter Words (5 found)
   8-Letter Words (2 found)
   9-Letter Words (1 found)