antediluvian 1 of 2

adjective

ˌan-ti-də-ˈlü-vē-ən How to pronounce antediluvian (audio)
Definition of antediluviannext
as in ancient
dating or surviving from the distant past found evidence in the Middle East of an antediluvian people previously unknown to history

Synonyms & Similar Words

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Antonyms & Near Antonyms

antediluvian

2 of 2

noun

as in conservative
a person with old-fashioned ideas thought his dad was an antediluvian for refusing to use any social media

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of antediluvian
Adjective
This antediluvian town knows — and that, too, is part of its multimillion-dollar charm — that in a world of rapidly upgrading software and all-subsuming artificial intelligence, natural wisdom must be nurtured and celebrated. — Kalpana Mohan, Mercury News, 3 Dec. 2025 Not a bad start, definitely auspicious, which makes the antediluvian inspirations behind these sparkling party dresses all the more mysterious. — Rachel Elspeth Gross, Forbes.com, 15 June 2025 Image Still, Professor Bogdanor said, the antediluvian nature of the Lords eroded faith in government generally, particularly among young people. — Mark Landler, New York Times, 24 Dec. 2024 Eliminating antediluvian student loan debts held by vulnerable older adults seems both just and good public policy. — Next Avenue, Forbes, 11 Oct. 2024 See All Example Sentences for antediluvian
Recent Examples of Synonyms for antediluvian
  1. ancient
  2. conservative
  3. venerable
  4. fossil
  5. medieval
  6. fogy
  7. old
  8. veteran
Adjective
  • Our research is already leading in new directions beyond ancient interiors.
    — Jacqueline Ortoleva, Scientific American, 3 Oct. 2026
  • For scientists, the harder question has been how oxygen stayed abundant for millions of years afterward — long enough, as ancient rocks suggest, to set the stage for the emergence of increasingly complex life.
    — Sharmila Kuthunur, Space.com, 3 Oct. 2026
Definition of ancient
Noun
  • Spain’s government lost two parliamentary votes to ratify emergency housing measures after Catalan separatists joined conservatives and the far right in opposition.
    — Joseph Wilson, Los Angeles Times, 2 Oct. 2026
  • Even before the announcement, Carnegie Mellon had growing ties to Florida, a state where conservatives have increased their influence on higher education.
    — ABC News, ABC News, 30 Sep. 2026
Definition of conservative
Adjective
  • As for the plane in question, this is a variant of the venerable F-16 and is a heavily modernized version featuring, among other features, APG-83 Active electronically scanned array (AESA) radar.
    — Christopher McFadden, Interesting Engineering, 3 Oct. 2026
  • But the venerable Atlas V is out of production and on the road to retirement, so Starliner-5 and Starliner-6 will have a different rocket ride — ULA's new Vulcan Centaur.
    — Mike Wall, Space.com, 28 Sep. 2026
Definition of venerable
Noun
  • The City of Boulder and Boulder County, Colorado, in 2018 sued major fossil-fuel producers Exxon Mobil and Suncor Energy, seeking financial damages under state public nuisance law.
    — ABC News, ABC News, 5 Oct. 2026
  • Ozone, which is made up of three oxygen atoms, forms when emissions of other pollutants such as carbon monoxide and nitrogen oxides from fossil-fuel burning or wildfires mix with sunlight and heat.
    — Mary Randolph, Scientific American, 30 Sep. 2026
Definition of fossil
Adjective
  • In a new study published this week in the journal Antiquity, researchers describe how a group of historians helped discover the early medieval monastery in a stroke of good luck.
    — Jackie Flynn Mogensen, Scientific American, 1 Oct. 2026
  • The film turns the princess tale into a passage across medieval fantasy, retro-futurist sci-fi and the present day.
    — Emiliano de Pablos, Variety, 30 Sep. 2026
Definition of medieval
Noun
  • There’s no old fogey-ness to Lorne.
    — David Fear, Rolling Stone, 20 Apr. 2026
  • For the benefit of us old fogies?
    — Sun Sentinel Editorial Board, Sun Sentinel, 30 Mar. 2026
Definition of fogy
Adjective
  • The proximity to his father was what worried Lorena Zschaber, a 40-year-old photographer, who watched the results roll in at an LGBTQ+ friendly bar in downtown Rio de Janeiro.
    — Arkansas Online, Arkansas Online, 5 Oct. 2026
  • The 168-year-old magazine’s breakout journalism, its digital success, and a bit of good timing have given both Goldberg and Thompson plenty to brag about on the media podcast circuit.
    — Max Tani, semafor.com, 5 Oct. 2026
Definition of old
Noun
  • The 15-year veteran looked confident and capable against the Chiefs on Sunday, throwing for 365 yards and two touchdowns.
    — Pete Sweeney October 5, Kansas City Star, 5 Oct. 2026
  • And considering the dearth of new mainstream stars — outside of Doechii and Don Toliver, other emerging talents have yet to commercially break through — hip-hop veterans have more of an opening to notch genuine hits.
    — Michael Saponara, Billboard, 5 Oct. 2026
Definition of veteran

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Cite this Entry

“Antediluvian.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/antediluvian. Accessed 9 Oct. 2026.

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