I love vintage and antiques - Always have - Always will! The romance of another time. The history embedded in vintage pieces fascinates me.
Generally speaking, clothing which was produced before the 1920s is referred to as antique clothing and clothing from the 1920s to 1980s is considered vintage. Retro, short for retrospective, usually refers to clothing that imitates the style of a previous era. Clothing produced more recently is usually called modern or contemporary fashion. Opinions vary on these definitions.
Most vintage clothing has been previously worn, but a small percentage of pieces have not. These are often old warehouse, or more valuable than those that have been worn, especially if they have their original tags. (also refered to as deadstock)