Obsoleted, or rendered outdated or no longer useful, is a word that has several synonyms. One possible synonym for obsolete is outdated, which means something is old or no longer relevant. Another synonym is archaic, which refers to things that are outdated to the point of being outdated or obsolete. Another synonym for obsoleted is superseded, which denotes that something has been replaced by something else that is better or more relevant. Other synonyms for obsolete include antiquated, passe, old-fashioned, and extinct. These synonyms are interchangeable and can be used in place of obsoleted to convey the same meaning.