Freshwater and Marine

Opposite meaning words

Freshwater noun - Water that is not salty.

Show all Definitions

Marine is an antonym for freshwater.

Marine adjective - Of or relating to the sea.

Show all Definitions

Freshwater is an antonym for marine in sea topic.

Nearby Words: mariner, marina, Marin

They have had a great success, colonizing all three main habitat just like crocs: terrestrial, marine, freshwater.

Source: Useful Notes / Prehistoric Life - Non-Dinosaurian Reptiles
Retool: In Season 8, the show's focus will shift from freshwater fish to marine life.

Source: Series / River Monsters
One sub-quest even has you rescuing some marine fish that have managed to wander into a freshwater area and made themselves very sick in the process.

Source: Misplaced Wildlife

Cite this Source

Marine and Freshwater. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/freshwater/marine

Freshwater & Marine. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/freshwater/marine>.

Marine or Freshwater. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/freshwater/marine.

Google Ngram Viewer shows how "freshwater" and "marine" have occurred on timeline