Is “Grippiest” a Scrabble word?
Yes
GRIPPIEST
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 Grippiest
adjective
1.Having a tight grip, or tending to grip well.
2.Tight-fisted, greedy, stingy.