The post-impressionists were artists of the late 19th century who saw the work of the French Impressionist painters and were influenced by them. Their art styles grew out of the style called Impressionism. The word "Post-" means "after", so "post-impressionist" painting came after "impressionist" painting. These artists developed impressionism but rejected its limitations. They continued using the real-life subject matter, with vivid colours, often with thick paint. However, they added other ideas. Using geometric forms, to distorting form for effect, and using unnatural colours are some of their ways. The critic Rewald said "the term 'post-impressionism' is not a very precise one, though a very convenient one".