DEEP-SEA Synonyms: 8 Similar and Opposite Words

deep-sea

adjective

ˈdēp-ˈsē

Definition of deep-sea next

as in oceanic

of, relating to, or occurring in the open sea chartered a boat to do some deep-sea fishing

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

littoral

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 deep-sea Think deep-sea mining or offshore oil drilling. —

Justin Worland, Time, 28 May 2026 There are whales and cacti; birds and deep-sea fish, or fruit and flowers bursting from the same stalk. —

Samantha Conti, Footwear News, 27 May 2026 Only in recent decades have geophysical technology and deep-sea cameras provided glimpses of these mysterious worlds. —

Quanta Magazine, 26 May 2026 It was first spotted in 2015 during a deep-sea expedition aboard the E/V Nautilus in a collaboration between the Charles Darwin Foundation and the Galápagos National Park Directorate, according to a news release published by the Field Museum in Chicago. —

Julia Gomez, USA Today, 26 May 2026 See All Example Sentences for deep-sea

Recent Examples of Synonyms for deep-sea

oceanic

Adjective

Some, like Li, say it’s caused by atmospheric forces, while others have identified oceanic conditions as the culprit.

— Joe Wilkins, Futurism, 10 June 2026
The data has long been used to understand oceanic and climate trends like how the ocean is absorbing greenhouse gases from the atmosphere or the impact of marine heat waves.

— Simmone Shah, Time, 9 June 2026