Is “Plummiest” a Scrabble word?
Yes
PLUMMIEST
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 Plummiest
adjective
1.Of, pertaining to, containing, or characteristic of plums
2.Desirable; profitable; advantageous
3.(of a voice) rich, mellow and carefully articulated, especially with an upper-class accent