Is “Iffiest” a Scrabble word?
Yes
IFFIEST
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 Iffiest
adjective
1.Of dubious authenticity, legitimacy or legality.
“He's selling new CD players for £20 each – that sounds a bit iffy to me.”
2.Uncertain or chancy.
“The weather is still iffy for Saturday's shuttle launch.”
Synonyms: dodgy, dubious, fishy