Is “Spiffiest” a Scrabble word?
Yes
SPIFFIEST
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 Spiffiest
adjective
1.Dapper; fine or neat, especially in style of clothing or other appearance.
Synonyms: snazzy, spiffing, spivvy