Synonyms of aquatic

aquatic

adjective

ə-ˈkwä-tik 

as in underwater

living, lying, or occurring below the surface of the water

a lifelong fascination with sharks and other fearsome aquatic creatures

Synonyms & Similar Words

• underwater
• submarine
• submerged
• sunken
• oceanic
• undersea
• deepwater
• deep-sea
• deep
• abyssal
• abysmal

Example Sentences

Recent Examples of aquatic

Analysis showed its feathers had underwater adaptations seen in aquatic birds today. — Mrigakshi Dixit, Interesting Engineering, 10 Sep. 2026

As the city moves forward with the museum, the aquatic system is under review, first responders are still negotiating contracts, water and sewer problems persist and residents in the northwest Hialeah continue to wait for a permanent fire station. — Veronica Egui Brito, Miami Herald, 9 Sep. 2026

Underwater robots are widely used to explore water bodies, map the seafloor, monitor coral reefs, measure water quality, and study aquatic animals. — Maryna Holovnova, New Atlas, 8 Sep. 2026

When combined with rising threats of wildfire and warming of the water itself, these conditions make the already hot and dry Southwest a precarious aquatic environment. — Brandon Loomis, AZCentral.com, 8 Sep. 2026