Is “Rummest” a Scrabble word?
Yes
RUMMEST
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 Rummest
adjective
1.Fine, excellent, valuable.
“having a rum time”
2.Strange, peculiar.
“a rum idea; a rum fellow”
Synonyms: exceptional, pukka, top-notch, bizarre, queer, rummy