GRUMPY is a playable word

grumpy Scrabble® Dictionary

adjective
grumpier, grumpiest
ill-tempered
(adverb) grumpily
22 Playable Words can be made from "GRUMPY"
   2-Letter Words (4 found)
   3-Letter Words (14 found)
   4-Letter Words (2 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)