cloistered vs monastic

cloistered is not a noun while monastic is a noun.

Word	Noun	Adjective	Verb	Adverb
cloistered	No	Yes	No	No
monastic	Yes	Yes	No	No

As adjectives, cloistered and monastic are synonyms defined as:

cloistered and monastic: of communal life sequestered from the world under religious vows

Other synonyms of cloistered include cloistral, conventual, monastical.

cloistered (noun)	monastic (noun)
	a male religious living in a cloister and devoting himself to contemplation and prayer and work

cloistered (adjective)	monastic (adjective)
providing privacy or seclusion	of communal life sequestered from the world under religious vows
of communal life sequestered from the world under religious vows