GRUMPED is a playable word

grump Scrabble® Dictionary

verb
grumped, grumping, grumps
to complain
76 Playable Words can be made from "GRUMPED"
   2-Letter Words (10 found)
   3-Letter Words (30 found)
   4-Letter Words (19 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)