Is “Jammier” a Scrabble word?
Yes
JAMMIER
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 Jammier
adjective
1.Resembling jam in taste, texture, etc.
2.Covered in jam.
“a child's jammy fingers”
3.(of a person) Lucky, especially undeservedly so.
“jammy bastard jammy sod”