Henri Matisse's world was a vibrant and colorful one, filled with art, music, and literature. He was a French artist who is considered to be one of the most influential painters of the 20th century. His work was characterized by its bold colors and expressive lines. He was also a sculptor, printmaker, and draughtsman. The term 'Matisse's World' refers to his artistic style and the world he created through his art. The crossword solution for this term is 'Monde, ' which is the French word for 'world.'