Synonyms for Ashcan School (same or very similar meaning)
WordNet sense 1 (a group of United States painters founded in 1907 and noted for their realistic depictions of sordid aspects of city life):
eightWordNet sense 2 (early 20th-century United States painting; portrays realistic and sordid scenes of city life):
Ash CanFrom the ODE community, based on WordNetadd/edit