quietist vs religious mystic

quietist and religious mystic both are nouns.

Word	Noun	Adjective	Verb	Adverb
quietist	Yes	No	No	No
religious mystic	Yes	No	No	No

As nouns, religious mystic is a hypernym of quietist; that is, religious mystic is a word with a broader meaning than quietist:

quietist: a religious mystic who follows quietism
religious mystic: someone who believes in the existence of realities beyond human comprehension

Other hypernyms of quietist include mystic.

quietist (noun)	religious mystic (noun)
a religious mystic who follows quietism	someone who believes in the existence of realities beyond human comprehension