Is “Grubbiest” a Scrabble word?
Yes
GRUBBIEST
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Grubbiest
adjective
1.Dirty, unwashed, unclean.
“He's a grubby little boy, always playing around by the stream.”
2.Having grubs in it.