amoralism vs school of thought

amoralism and school of thought both are nouns.

Word	Noun	Adjective	Verb	Adverb
amoralism	Yes	No	No	No
school of thought	Yes	No	No	No

As nouns, school of thought is a hypernym of amoralism; that is, school of thought is a word with a broader meaning than amoralism:

amoralism: the doctrine that moral distinctions are invalid
school of thought: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of amoralism include doctrine, ism, philosophical system, philosophy.

amoralism (noun)	school of thought (noun)
the doctrine that moral distinctions are invalid	a belief (or system of beliefs) accepted as authoritative by some group or school