Is “Costive” a Scrabble word?
Yes
COSTIVE
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 Costive
/ˈkɒstɪv/
adjective
1.Constipated
2.Miserly, parsimonious