monastic vs conventual

monastic is a noun but conventual is not a noun.

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

As adjectives, monastic and conventual are synonyms defined as:

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

Other synonyms of monastic include cloistered, cloistral, monastical.

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

monastic (adjective)	conventual (adjective)
of communal life sequestered from the world under religious vows	of communal life sequestered from the world under religious vows