In 1855, Gustave Courbet’s “Pavillon du réalisme” excited indignation. A close scrutiny of the reactions of four prominent critics of the time – Théophile Silvestre, Charles Baudelaire, and the Goncourt brothers – sheds new light on the nature of the debate and the underlying aes- thetic theories behind these divided responses. All of them participated in defining the painter of Ornans as the spearhead of a new current in painting that negated the imagination, as they claimed. Analyzing their arguments leads me to retrace the lexical misunderstanding at the heart of the debate about French realism, marked by unsteady definitions and violent parti- sanship. According to Baudelaire and Silvestre, realism is flawed in its very definition. Fo...