Old-fashioned, obsolete (8)
(Other definitions for outdated that I've seen before include "Obsolete, antiquated" , "No longer valid or fashionable" , "Old-fashioned" , "Passe" , "Pass" .)
(Other definitions for outmoded that I've seen before include "Dated" , "No longer in fashion" , "Old-fashioned" , "No longer fashionable" .)