slacks

Along with the word "trousers," slacks is a somewhat old-fashioned synonym for the word pants, which is commonly used in the U.S. (but not in Britain) to refer to a two-legged garment meant to cover the lower body from the waist down. Slacks often refer pants that are more dressy or formal than jeans, for example, especially if they have a pleats or knife-edged crease. At the same time, the term excludes pants that are part of a suit. Slacks can be worn by women or men.