To replace or make obsolete or old-fashioned.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "outdate" in a sentence
"But until newer global technologies outdate the phrase, everyone will at least know what you mean by compact disc."
"The repression of women has tribal roots that far outdate the Taliban ideology, particularly in rural Afghanistan."
"If all this sounds like outdate tradecraft, there's a reason."