Bellbottom pants are a fashion trend that originated in the 1970s. These pants are characterized by their flared leg bottoms which become wider towards the ankle. Some popular synonyms for bellbottom pants include flared pants, wide-leg pants, and flare jeans. Flared pants are trousers that have a wider leg opening at the hemline, creating a flared shape. Wide-leg pants are pants that have a loose and relaxed fit with a wide leg from the hip to the hem. Flare jeans have a similar cut as bellbottom pants but are made with denim instead of other fabrics. Whatever you choose to call them, bellbottom pants have remained a timeless fashion staple.