Utrillo is a French surname that is commonly associated with the famous painter, Maurice Utrillo. However, the word has no synonym as it is a proper noun and represents an individual's name. To describe the works of Maurice Utrillo, one could use adjectives such as impressionist, post-impressionist, or expressionist. His paintings often depicted the streets of Paris and were characterized by their pastel colors, blurred outlines, and thick brushstrokes. Other synonymic terms that may be related to the art style of Utrillo include Fauvism, Cubism, or Cezanne-like approach. However, it is worth noting that these terms do not replace the name Utrillo or its association with the artist.