1
as in unfathomable
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as in deep-sea
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Recent Examples of abyssal
For its part, TMC intends to have large vessels out at sea deploying collector vehicles down to abyssal depths of 2.5-3.75 miles (4-6 km) in the Clarion Clipperton Zone in the Pacific Ocean.
—
New Atlas, 5 Apr. 2025
Seamounts are underwater mountains that rise hundreds or thousands of feet from the seafloor and can provide a vital habitat for marine life, while abyssal hills are smaller, underwater mounds.
—Josh Hammer, MSNBC Newsweek, 1 Apr. 2025
Three years of computer modeling found the Antarctic overturning circulation – also known as abyssal ocean overturning – is on track to slow 42% by 2050 if the world continues to burn fossil fuels and produce high levels of planet-heating pollution.
—Hilary Whiteman, CNN, 29 Mar. 2023
As an open-source project, C:DDA has its inner workings posted freely online, where anyone with a working knowledge of C++ can dive in and add weapons, recipes, and more information into the simulation's already abyssal depths.
—Eric Limer, Popular Mechanics, 17 Dec. 2018
Even here, though, abyssal tuba notes exposed a sonic substratum.
—Alex Ross, The New Yorker, 21 Apr. 2017
Before New Horizons flew by, scientists thought there wouldn’t be much in the way of geological activity happening out there on the fringe, where temperatures are decidedly abyssal and materials tend to freeze in place.
—National Geographic, 14 July 2016
New Atlas, 5 Apr. 2025
Seamounts are underwater mountains that rise hundreds or thousands of feet from the seafloor and can provide a vital habitat for marine life, while abyssal hills are smaller, underwater mounds.
—Josh Hammer, MSNBC Newsweek, 1 Apr. 2025
Three years of computer modeling found the Antarctic overturning circulation – also known as abyssal ocean overturning – is on track to slow 42% by 2050 if the world continues to burn fossil fuels and produce high levels of planet-heating pollution.
—Hilary Whiteman, CNN, 29 Mar. 2023
As an open-source project, C:DDA has its inner workings posted freely online, where anyone with a working knowledge of C++ can dive in and add weapons, recipes, and more information into the simulation's already abyssal depths.
—Eric Limer, Popular Mechanics, 17 Dec. 2018
Even here, though, abyssal tuba notes exposed a sonic substratum.
—Alex Ross, The New Yorker, 21 Apr. 2017
Before New Horizons flew by, scientists thought there wouldn’t be much in the way of geological activity happening out there on the fringe, where temperatures are decidedly abyssal and materials tend to freeze in place.
—National Geographic, 14 July 2016
Recent Examples of Synonyms for abyssal
Adjective
-
For a disaster so vast and so unfathomable, some sort of grounding feels necessary, some little point to hold on to, some faces to remember, but even the actual story of the bus and its temporary inhabitants feels a touch too small for the grand scale Greengrass is working on here.—
Kate Erbland,
IndieWire,
6 Sep. 2025
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And the way that people marginalize and attack the Trans community, especially politically, is unfathomable to me, and so unbearably cruel.—
Anna Kaufman,
USA Today,
4 Sep. 2025
Adjective
-
This deep-sea predator, characterized by its large eyes and tiny teeth, was found during bycatch surveys with shrimp trawlers.—
Real-Time News team,
Miami Herald,
12 Sep. 2025
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Activities such as global shipping, seismic airgun surveys for oil and gas, offshore construction and drilling, and the emerging threat of deep-sea mining now flood the seas with constant, disruptive sound.—
Laura Baisas,
Popular Science,
11 Sep. 2025
Adjective
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Steve Martin, Martin Short and Selena Gomez are seemingly unstoppable, and their building has a seemingly infinite number of murders in this Hulu mystery comedy.—
Kelly Lawler,
USA Today,
4 Sep. 2025
-
If the original function has a sharp edge, like the square wave below (which is often found in digital signals), the Fourier transform will produce an infinite set of frequencies that, when added together, approximate the edge as closely as possible.—
Shalma Wegsman,
Quanta Magazine,
3 Sep. 2025
Adjective
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Those offshore turbines are dramatically larger than ones on land and require substantial infrastructure at ports for construction, from large assembly facilities to deepwater docks for ships that carry turbines out to sea.—
Lauren Sommer,
NPR,
31 Aug. 2025
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By this year, deepwater oil will account for 10% of global crude supply, according to Rystad Energy.—
Ian Dexter Palmer,
Forbes.com,
29 Aug. 2025
Adjective
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The vast, sprawling Conjuring franchise, which began back in 2013, has spawned a complex web of sequels, prequels and spin-offs, some of which are loosely based on cases covered by paranormal investigators Ed and Lorraine Warren.—
Dani Di Placido,
Forbes.com,
10 Sep. 2025
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The vast majority of NCAA student-athletes want to earn their degree while playing ball.—
Fort Worth Star-Telegram,
Fort Worth Star-Telegram,
9 Sep. 2025
Adjective
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According to the study authors, these changes can be tied to stagnation and decline in the ocean’s biodiversity, particularly among benthic animals, or animals associated with the bottom of the sea, such as corals, crustaceans, and brachiopods.—
Sam Walters,
Discover Magazine,
24 June 2025
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The scientists noticed a drop in their prey, such as small pelagic fishes in the case of seals and smaller benthic sharks in the case of sevengill sharks.—
Rick Sobey,
Boston Herald,
27 Apr. 2025
Adjective
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For the advanced, channels around the islands work like pelagic highways, attracting more than 3,000 different marine species.—
Terry Ward,
AFAR Media,
11 Sep. 2025
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Meanwhile, offshore, the Oregon Islands National Wildlife Refuge pulses with life: think harbor seals, black oystercatchers, and pelagic cormorants.—
Lewis Nunn,
Forbes.com,
8 Aug. 2025
Adjective
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The weekend consists of marine science talks mixed with social events with fellow snorkelers, divers, and ocean conservationists.—
Kelsey Glennon,
Southern Living,
12 Sep. 2025
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But even as new tools and strategies emerge to quiet the seas, the legal foundation that has long safeguarded marine life is under pressure.—
Laura Baisas,
Popular Science,
11 Sep. 2025
Cite this Entry
“Abyssal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/abyssal. Accessed 16 Sep. 2025.
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