Stile antico (literally "ancient style", Italian pronunciation: ['sti:le an'ti:ko]), is a term describing a manner of musical composition from the sixteenth century onwards that was historically conscious, as opposed to stile moderno, which adhered to more modern trends. It has been associated with composers of the high Baroque and early Classical periods of music, in which composers used controlled dissonance and modal effects and avoided overtly instrumental textures and lavish ornamentation, to imitate the compositional style of the late Renaissance. Stile antico was deemed appropriate in the conservative confines of church music, or as a compositional exercise as in J. J. Fux's Gradus Ad Parnassum (1725), the classic textbook on strict counterpoint. Much of the music associated with this style looks to the music of Palestrina as a model.
The great composers of the late Baroque all wrote compositions in this style, especially Bach. His Mass in B minor has sections written in stile antico which contrast with up-to-date Baroque idioms. Later composers such as Haydn and Mozart also used stile antico. Beethoven's Missa Solemnis, written after the composer's study of Palestrina, is a late flowering of the style.