Is “Darkest” a Scrabble word?
Yes
DARKEST
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 Darkest
adjective
1.Having an absolute or (more often) relative lack of light.
“The room was too dark for reading.”
2.(of colour) Dull or deeper in hue; not bright or light.
“my sister's hair is darker than mine; her skin grew dark with a suntan”
3.Hidden, secret, obscure.
Synonyms: hopeless, negative, pessimistic, unenlightened, deep, dim