Is “Shaggiest” a Scrabble word?
Yes
SHAGGIEST
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 Shaggiest
adjective
1.With long, thick, and uncombed hair, fur or wool.
2.With a surface like shaggy hair; rough nap.