antediluvian
Americanadjective
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of or belonging to the period before the Biblical Flood.
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very old, old-fashioned, or out of date; antiquated; primitive.
antediluvian ideas.
noun
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a person who lived before the Biblical Flood.
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a very old or old-fashioned person or thing.
adjective
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belonging to the ages before the biblical Flood (Genesis 7, 8)
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old-fashioned or antiquated
noun
Etymology
Origin of antediluvian
First recorded in 1640–50; ante- + Latin dīluvi(um) “a flood, deluge” + -an; see origin at deluge
Explanation
Antediluvian means "before the flood" — that is, the Biblical flood with Noah's ark. Generally, though, the word is used — often humorously — to describe something really, really old. In popular language, antediluvian is almost always used to exaggerate how comically, ridiculously old and out-of-date something is. You may laugh at your parents' antediluvian ideas of what's proper for going out on a date. And how about those antediluvian computers they still insist are fine! When the word was coined in the seventeenth century, however, it was meant literally. Back then, the science of reconstructing the Earth's history used the Bible as a frame of reference.
Vocabulary lists containing antediluvian
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Microsoft released the first version of Internet Explorer in 1995, the antediluvian era of web surfing dominated by the first widely popular browser, Netscape Navigator.
From Seattle Times ● Jun. 14, 2022
So, $23.7 billion annually to renovate an antediluvian water system?
From Salon ● Nov. 26, 2021
There is a strange sense of almost antediluvian time operating in this atmospheric collection, and intriguing hints at lives influenced more by myth than by history.
From New York Times ● Oct. 1, 2021
Michael Pollan describes this as a kind of antediluvian experience, a return to paradise before science and technology pushed us “toward the objectification of nature and of all species other than our own.”
From Slate ● Sep. 21, 2021
Cockie was not a pretty bird; his bill was worn and all twisted awry, and his eyes looked terribly old-fashioned, and the blue, wrinkled skin around them gave him quite an antediluvian look.
From Wild Adventures round the Pole The Cruise of the "Snowbird" Crew in the "Arrandoon" by Stables, Gordon
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.