IFFIEST is a playable word

iffy Scrabble® Dictionary

adjective
iffier, iffiest
full of uncertainty
(adverb) iffily
49 Playable Words can be made from "IFFIEST"
   2-Letter Words (10 found)
   3-Letter Words (17 found)
   4-Letter Words (14 found)
   5-Letter Words (6 found)
   7-Letter Words (2 found)