The term outdated refers to something that is no longer in use, relevant or up-to-date due to changes in technology, fashion, culture or other factors. It can describe a person whose beliefs, ideas or practices are considered old-fashioned or antiquated; an object or product that has become obsolete because of advancements in design or technology; or information that is no longer accurate or reliable due to new discoveries or changes in understanding. In essence, outdated refers to something that is past its prime and not considered useful or valuable anymore.