hardedge

/ˈhɑrdˌɛdʒ/
noun
  1. A style of abstract painting characterized by sharp, clear outlines and flat areas of color.
    • Hardedge art often uses geometric shapes and bold, contrasting colors.
    • She studied hardedge techniques to create precise, clean lines in her work.
    • The museum's new exhibit features hardedge paintings from the 1960s.