moralist vs disciplinarian

moralist and disciplinarian both are nouns.

Word	Noun	Adjective	Verb	Adverb
moralist	Yes	No	No	No
disciplinarian	Yes	No	No	No

As nouns, moralist and disciplinarian are synonyms defined as:

moralist and disciplinarian: someone who demands exact conformity to rules and forms

Other synonyms of moralist include martinet.

moralist (noun)	disciplinarian (noun)
a philosopher who specializes in morals and moral problems	someone who demands exact conformity to rules and forms
someone who demands exact conformity to rules and forms