MIFFING is a playable word

miff Scrabble® Dictionary

verb
miffed, miffing, miffs
to annoy
16 Playable Words can be made from "MIFFING"
   2-Letter Words (4 found)
   3-Letter Words (7 found)
   4-Letter Words (3 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)