literalism vs ism

literalism and ism both are nouns.

Word	Noun	Adjective	Verb	Adverb
literalism	Yes	No	No	No
ism	Yes	No	No	No

As nouns, ism is a hypernym of literalism; that is, ism is a word with a broader meaning than literalism:

literalism: the doctrine of realistic (literal) portrayal in art or literature
ism: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of literalism include doctrine, philosophical system, philosophy, school of thought.

literalism (noun)	ism (noun)
the doctrine of realistic (literal) portrayal in art or literature	a belief (or system of beliefs) accepted as authoritative by some group or school
a disposition to interpret statements in their literal sense