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
  • Although there are plenty of books in three languages (Arabic, French, and English), there are also museums, a planetarium, and a lab dedicated to restoring and preserving ancient manuscripts.
    — Condé Nast, Condé Nast Traveler, 7 Sep. 2026
  • Unlike the other four, it was not protected as an ancient monument because it was believed to have been lost.
    — Andrea Margolis, FOXNews.com, 7 Sep. 2026
Definition of ancient
Noun
  • Elsewhere in Semafor, Ben Smith recapped an off-site debate between conservatives about the threats created by AI.
    — David Weigel, semafor.com, 11 Sep. 2026
  • There's also the daunting task of keeping young conservatives engaged at a time when many of them are unhappy with party leaders.
    — Elena Moore, NPR, 10 Sep. 2026
Definition of conservative
Adjective
  • James Wolk has been tapped for a recurring role on the upcoming 23rd season of the venerable ABC medical drama.
    — Nellie Andreeva, Deadline, 4 Sep. 2026
  • Busy schedules at venues of every size, particularly the venerable clubs and halls that help give Chicago its local flavor.
    — Chicago Tribune, Chicago Tribune, 31 Aug. 2026
Definition of venerable
Noun
  • This union of fossil energy and physical resources is consummated in those regions building infrastructure for private mobility, which rapidly escalated after the Second World War.
    — Literary Hub, Literary Hub, 4 Sep. 2026
  • To get a closer look at these details, paleontologists relied on neutron imaging to see the lighter elements present in the fossils as well as X-ray imaging to look at the heavier ones.
    — Andrew Paul, Popular Science, 3 Sep. 2026
Definition of fossil
Adjective
  • The Scene The Bayeux Tapestry, which went on display in the British Museum this week, is one of the wonders of the medieval world.
    — Andrew Edgecliffe-Johnson, semafor.com, 11 Sep. 2026
  • Now, Greengrass applies his signature style to the Middle Ages — can shaky cam work in a medieval movie?
    — Katie Walsh, Los Angeles Times, 11 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 sheriff's office's drone was used to assist in checking the approximately 28-acre property and helped identify old kennel and animal-confinement areas.
    — River Valley Democrat-Gazette, Arkansas Online, 9 Sep. 2026
  • The 27-year-old pre-training researcher’s dramatic resignation has fired off a provocative warning on X that instantly sent ripples across the tech sector.
    — Mrigakshi Dixit, Interesting Engineering, 9 Sep. 2026
Definition of old
Noun
  • After Ekwonu ruptured his patellar tendon in the playoff loss to the Los Angeles Rams, the Panthers signed veteran tackle Rasheed Walker to a one-year deal in free agency, then drafted Freeling with the 19th pick a month later.
    — Joseph Person, New York Times, 9 Sep. 2026
  • Sharperson, a producer and veteran actor, has more than 20 years of network television and commercial experience.
    — E'Ian West, Forbes.com, 8 Sep. 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 14 Sep. 2026.

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