Also found in: Thesaurus.
1. Too old to be fashionable, suitable, or useful; outmoded. See Synonyms at old.
2. Very old; aged: "They were always chippering and chatting to each other, like a pair of antiquated house-sparrows" (Harriet Beecher Stowe).
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.