Is “Externalism” a Scrabble word?
Yes
EXTERNALISM
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 Externalism
noun
1.Excessive regard to outward acts or appearances, especially in religion.
2.The act of judging by outward appearance or acts.
3.The belief that only things that can be observed by senses are real.