We don't have synonyms for vestiarian yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are bestiarian, vestiarium and estuarian.
(adj) :
Of or pertaining to a vestiary or vestments.
(n) :
A member of a monastery responsible for making, caring for, and distributing habits.
(n) :
(historical) During the vestiarian controversy, a supporter of the wearing of vestments by the clergy (as opposed to an anti-vestiarian who considered the wearing of vestments a form of idolatry).
(adj) :
Of or pertaining to a vestiary or vestments.
(n) :
A member of a monastery responsible for making, caring for, and distributing habits.
(n) :
(historical) During the vestiarian controversy, a supporter of the wearing of vestments by the clergy (as opposed to an anti-vestiarian who considered the wearing of vestments a form of idolatry).