noting or pertaining to a style of architecture, popularly associated with the École des Beaux-Arts in Paris, that prevailed in France in the late 19th century and that was adopted in the U.S. and elsewhere c1900, characterized by the free and eclectic use and adaptation of French architectural features of the 16th through 18th centuries combined so as to give a massive, elaborate, and often ostentatious effect, and also by the use of symmetrical plans preferably allowing vast amounts of interior space.
resembling the architecture, architectural precepts, or teaching methods of the Ecole des Beaux-Arts in Paris: often used in a pejorative sense to designate excessive formalism disregarding considerations of structural truth, advanced aesthetic theory, rational planning, or economy.