Dictionary.com
Thesaurus.com
Jump To:
  • leviathan
    leviathan
    noun
    Often Leviathan a sea monster.
  • Leviathan
    Leviathan
    A sea monster mentioned in the Book of Job, where it is associated with the forces of chaos and evil.
Synonyms

leviathan

American  
[li-vahy-uh-thuhn] / lɪˈvaɪ ə θən /

noun

leviathans plural
  1. Bible. Often Leviathan a sea monster.

  2. any huge marine animal, as the whale.

  3. anything of immense size and power, as a huge, oceangoing ship.

  4. Leviathan, a philosophical work (1651) by Thomas Hobbes dealing with the political organization of society.


leviathan British  
/ lɪˈvaɪəθən /

noun

  1. Bible a monstrous beast, esp a sea monster

  2. any huge or powerful thing

"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

Leviathan Cultural  
  1. A sea monster mentioned in the Book of Job, where it is associated with the forces of chaos and evil.


Discover More

Figuratively, a “leviathan” is any enormous beast.

Leviathan is a work on politics by the seventeenth-century English author Thomas Hobbes.

Other Word Forms

Noun Inflected Forms

Etymology

Origin of leviathan

First recorded in 1350–1400; Middle English levyathan, from Late Latin leviathan, ultimately from Hebrew liwyāthān

Explanation

A leviathan is a giant sea creature. It can be real, like a whale, or mythical. Moby Dick is an example of a famous leviathan. The word comes from Hebrew livyathan which means a great sea serpent or sea monster. A real leviathan is the giant sea squid Architeuthis, which was photographed alive for the first time in 2005. A leviathan can also be something that is really, really big. The Titanic was a leviathan that now rests with leviathans.

Keep Reading on Vocabulary.com

Vocabulary lists containing leviathan

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.

See Examples For:

Here is Melville’s literary leviathan fantastically adorned with more than 270 of Kent’s black-and-white illustrations, many of them a full page in size.

From The Wall Street Journal Jan. 2, 2026

But — and this is one leviathan of a “but” — something else is starting to emerge in the polling.

From Seattle Times Mar. 9, 2024

CEO Kim Bayley said gaming "continued to show its ability to connect with people" last year, and despite the modest growth the industry "remains a leviathan".

From BBC Jan. 9, 2024

Plagiarism-detection leviathan Turnitin is touting its own “A.I.” solutions to confront the burgeoning issue.

From Slate Feb. 3, 2023

But from this vantage point she saw the wall had been crafted in the shape of a leviathan, a giant ice dragon circling the island and swallowing its own tail.

From "Six of Crows" by Leigh Bardugo

At the toe of the bluff, the geotubes stretched out like a beached Leviathan.

From The Wall Street Journal Apr. 8, 2026

Israel has halted production at its Karish and Leviathan fields, which will affect exports to Egypt and Jordan.

From Barron's Mar. 3, 2026

Like Timothée Chalamet’s dashingly coifed hero — who steers monstrous sandworms over the desert like a charioteer — Villeneuve has tamed a Leviathan.

From New York Times Feb. 29, 2024

Computer software being developed by Leviathan will automatically plan how to chop up a vessel as efficiently as possible.

From BBC Oct. 5, 2023

It is my book, not Leviathan and the Air- pump, which advocates following Gellner.

From "The Invention of Science" by David Wootton

Jerry Jones and Robert Kraft are the octogenarian owners, respectively, of the Dallas Cowboys and the New England Patriots; both built leviathans for football stadiums while finding creative ways to expand the NFL brand.

From The Wall Street Journal Oct. 24, 2025

In his 1851 novel Moby Dick, Herman Melville describes right whales as “the most venerable of the leviathans, being the one first regularly hunted by man.”

From National Geographic Jan. 25, 2024

Pushing further back, Mota’s most recent novel, “El Foso de Mabuya,” or “Mabuya’s Tomb,” envisions leviathans destroying Christopher Columbus’s expedition before it arrives in the Americas and paints the continents as united under Indigenous peoples.

From New York Times Jun. 10, 2023

Hogan’s team hopes to use that breather to fill in vital details about the Mekong’s lengthy list of leviathans.

From Science Magazine May 30, 2023

But such leviathans appeared only late in antiquity, and were exceptional.

From "Circumference" by Nicholas Nicastro

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training