Looseleaf is a term commonly used to describe a type of paper that comes in sheets or pages that can be easily removed or added from a binder. There are several synonymous words that can be used to describe this type of paper. One such word is "unbound," which refers to paper that is not bound or fastened in any way. Another synonym is "detachable," which describes paper that can be easily separated or disconnected. "Perforated" is also a suitable synonym as it refers to paper that has small holes or cuts for easy removal. Lastly, "removable" accurately describes paper that can be taken out or replaced from a binder.