“Insensatez” (usually translated to “How Insensitive” in English, although the Portuguese word really means ‘absurdity’ or ‘folly’) is a bossa nova jazz standard composed by Antônio Carlos Jobim, loosely based on Frédéric Chopin’s Prelude No.4 with lyrics byVinícius de Moraes. The English lyrics were written by Norman Gimbel.