conventual
Belonging to a convent, monastery, or nunnery, as a conventual church, conventual buildings; of the style and character of a convent. The term monastic is preferable in referring to the architectural style of the period when monasticism was at its highest development, and, indeed, in speaking of the architectural style of conventual buildings. (Sturgis, 1900) Photo of Ursuline Convent from New Orleans, Louisiana, 2024.