Is “Sthenic” a Scrabble word?
Yes
STHENIC
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 Sthenic
/ˈsθɛnɪk/
adjective
1.Characterised by nervous energy; strong; robust.