As nouns the difference between externalism and ritualism
is that externalism is excessive regard to outward acts or appearances, especially in religion the denial of internalism while ritualism is the belief that it is necessary for rites or repeated sets of actions to be carried out.
externalism
English
Noun
(
en noun)
Excessive regard to outward acts or appearances, especially in religion. The denial of internalism.
The act of judging by outward appearance or acts.
The belief that only things that can be observed by senses are real.
ritualism
English
Noun
(
en noun)
The belief that it is necessary for rites or repeated sets of actions to be carried out.