Is “Upbuilt” a Scrabble word?
Yes
UPBUILT
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 Upbuilt
verb
1.To build up (literally).
2.To build up; to develop (figuratively).