From Longman Dictionary of Contemporary EnglishPalladianPal‧la‧di‧an /pəˈleɪdiən/ adjective tech 1 belonging to a neoclassical style of building developed by Andrea Palladio in Italy in the 16th century, which was strongly influenced by ancient Greek and Roman styles2 based on the neoclassical style developed by Palladio, and popular with very wealthy people in the UK in the 18th century a Palladian mansion