abyssal

adjective

Definition of abyssalnext
1
as in unfathomable

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Dissimilar Words
2
as in deep-sea

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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 abyssal Along with the abyssal green dress, Union wore embellished leather sandal heels courtesy of Miu Miu for an extra dose of summer style. — Julia Teti, Footwear News, 12 June 2026 To delve to the (geological) heart of the matter, scientists want to know the moon’s deepest secret—what’s happening at its most abyssal depths. — Robin George Andrews, Scientific American, 7 Apr. 2026 Advertisement The cliché of the grandmaster whose mind has been tied in knots contemplating the abyssal depths of a chess game is largely a fantasy; despite a few high-profile cases, no statistical link has been established between skill in chess and madness. — Jordan Himelfarb, Time, 15 Dec. 2025 The heart of noir tends to be nihilism, its abyssal mood a veil that invites you to glimpse the darker machinery of a world ruled by insurmountable powers where resistance leads only to ruin. — Nicholas Quah, Vulture, 22 Sep. 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 Even here, though, abyssal tuba notes exposed a sonic substratum. — Alex Ross, The New Yorker, 21 Apr. 2017
Recent Examples of Synonyms for abyssal
  1. unfathomable
  2. deep-sea
  3. infinite
  4. deepwater
  5. vast
  6. benthic
  7. pelagic
  8. marine
Adjective
  • When Mina’s closest friend Lucy succumbs to his thrall, the enigmatic Professor Van Helsing is summoned to wage war on this unfathomable threat.
    — Andreas Wiseman, Deadline, 22 July 2026
  • How does personal responsibility enter into this world of unfathomable dangers?
    — Gal Beckerman, The Atlantic, 17 July 2026
Definition of unfathomable
Adjective
  • The paper eliminates a popular theory as to why insects can’t live in oceans—namely that their respiratory systems would implode under deep-sea pressure.
    — Mary Randolph, Scientific American, 23 July 2026
  • Scientists have found an active coral community that may belong to a deep-sea coral reef system presumed to be dead decades ago, according to new research.
    — Julia Jacobo, ABC News, 23 July 2026
Definition of deep-sea
Adjective
  • The price of a cure not yet invented is effectively infinite.
    — Craig Garthwaite, Fortune, 24 July 2026
  • Its basic proposition was logical to me – that God is divine intelligence, the wholly good, infinite Spirit that creates man spiritually in His likeness.
    — Suzanne Riedel, Christian Science Monitor, 22 July 2026
Definition of infinite
Adjective
  • Morocco has been building a $1 billion deepwater port in the territory’s city of Dakhla, which featured in the video Trump shared Sunday.
    — Zachary Folk, Forbes.com, 26 July 2026
  • Marine welders handle massive, oddly shaped, and heavy components such as deepwater jacket strengthening rings and module nodes.
    — Mrigakshi Dixit, Interesting Engineering, 15 June 2026
Definition of deepwater
Adjective
  • DeepSeek challenged the conventional wisdom that developing an advanced AI model requires massive financial investment and vast computing power, and offered competitive pricing.
    — John Liu, CNN Money, 24 July 2026
  • Tech firms are now addressing this blind spot, deploying AI to analyze vast backlogs of inspection photos and notes, identifying defects like corrosion.
    — Dara-Abasi Ita, Forbes.com, 23 July 2026
Definition of vast
Adjective
  • Supporting future development Project leaders described Expedition 7 as one of the most productive benthic baseline campaigns completed within the deep-sea minerals sector.
    — Aamir Khollam, Interesting Engineering, 24 June 2026
  • Recognizable by their strong pharyngeal teeth used to crush mollusc shells, black carps can significantly impact local ecosystems by feeding on mussels and snails, and competing with other native benthic fishes like smallmouth buffalo.
    — Cheyenne Derksen, Oklahoman, 18 Mar. 2026
Definition of benthic
Adjective
  • His winning series was captured in the waters of Anilao, Philippines, where pelagic and larval marine life migrate from the depths each night to feed under the cover of darkness.
    — Cecilia Rodriguez, Forbes.com, 2 July 2026
  • Researchers also encountered glass squid and spotted a pelagic octopus feeding on a bright red jellyfish.
    — Ashley Vega, PEOPLE, 15 June 2026
Definition of pelagic
Adjective
  • The goal of the expedition is to raise money and awareness for his nonprofit, which is dedicated to Arctic climate research, marine science and exploration.
    — Meredith Wilshere, PEOPLE, 26 July 2026
  • For Brabus, the agreement marks a significant expansion of its marine portfolio.
    — Rachel Ingram, Robb Report, 26 July 2026
Definition of marine

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“Abyssal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/abyssal. Accessed 27 Jul. 2026.

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