• synonyms


[an-tee-di-loo-vee-uh n]
See more synonyms on Thesaurus.com
  1. of or belonging to the period before the Flood. Gen. 7, 8.
  2. very old, old-fashioned, or out of date; antiquated; primitive: antediluvian ideas.
  1. a person who lived before the Flood.
  2. a very old or old-fashioned person or thing.

Origin of antediluvian

1640–50; ante- + Latin dīluvi(um) a flood, deluge + -an
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for antediluvian

Contemporary Examples

Historical Examples

British Dictionary definitions for antediluvian


  1. belonging to the ages before the biblical Flood (Genesis 7, 8)
  2. old-fashioned or antiquated
  1. an antediluvian person or thing

Word Origin

C17: from ante- + Latin dīluvium flood
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for antediluvian


"before Noah's flood," 1640s, formed from Latin ante- "before" (see ante) + diluvium "a flood" (see deluge (n.)). Coined by English physician Sir Thomas Browne (1605-1682). As a noun meaning "person who lived before the Flood," from 1680s.

Online Etymology Dictionary, © 2010 Douglas Harper

  • About
  • Cookies, Terms, & Privacy
© 2018 Dictionary.com, LLC.