Is “Slipperiest” a Scrabble word?
Yes
SLIPPERIEST
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 Slipperiest
adjective
1.Of a surface, having low friction, often due to being covered in a non-viscous liquid, and therefore hard to grip, hard to stand on without falling, etc.
“Oily substances render things slippery.”
2.(by extension) Evasive; difficult to pin down.
“a slippery person”
3.Liable to slip; not standing firm.
Synonyms: greasy, slick, slimy, slippy, wet