The crossword solution for the term 'NYMPHEAS PAINTER' is MONET, a French Impressionist painter. Claude Monet was a renowned artist who was a key figure in the development of the Impressionist style of painting. He is best known for his series of paintings of water lilies, which he painted in his garden at Giverny. The series, titled Nympheas, is considered to be one of his most famous works.