What then-derogatory term was applied to the painters Monet , Sisley , Pissarro , Renoir and Degas?

The derogatory term that was applied to the painters Monet, Sisley, Pissarro, Renoir, and Degas was "Impressionists." The term was originally used pejoratively by critics who considered the artists' work to be too unconventional and not adhering to traditional artistic techniques. However, the term was later embraced by the artists themselves and is now widely recognized as a significant movement in the history of art.