Is “Stupefy” a Scrabble word?
Yes
STUPEFY
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 Stupefy
/ˈst(j)upəˌfaɪ/
verb
1.To dull the senses or capacity to think thereby reducing responsiveness; to dazzle or stun.