Minimalist architecture is a design trend characterized by simplicity and the reduction of elements to achieve harmony, often using large spaces, monochromatic colors, and pure textures. It emerged as a reaction against consumerism and was heavily influenced by Japanese aesthetic principles like zen philosophy and wabi-sabi. Key figures include Tadao Ando, whose designs integrate nature and provoke contemplation, and Luis Barragán, who blended modern and traditional elements in Mexican architecture.