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tr.v. out·dat·ed, out·dat·ing, out·dates
To replace or make obsolete or old-fashioned.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(tr) (of something new) to cause (something else) to become old-fashioned or obsolete
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Past participle: outdated
Collins English Verb Tables © HarperCollins Publishers 2011