POLLUTANT Synonyms: 33 Similar and Opposite Words

pollutant

noun

pə-ˈlü-tᵊnt

Definition of pollutant

as in contaminant

something that is or that makes impure filtered the pollutants out of the water

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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 pollutant Furthermore, earthen walls are natural air conditioners, which regulate indoor humidity, trap pollutants, and insulate rooms against extreme heat and cold. — Mrigakshi Dixit, Interesting Engineering, 24 June 2026 As whole house fans and swamp coolers can suck additional pollutants inside, the department recommends using air purifiers or air conditioners as alternatives when possible. — Corinne Purtill, Los Angeles Times, 4 July 2026 Urban waterbodies are often harsh environments with a variety of challenges, including high temperatures, low levels of dissolved oxygen, and pollutants. — Eric Palkovacs, The Conversation, 25 June 2026 The material can power reactions such as oxidizing organic molecules, potentially degrading pollutants, sterilizing surfaces, or enabling photocatalytic chemistry to continue later in the dark. — New Atlas, 3 July 2026 See All Example Sentences for pollutant

Recent Examples of Synonyms for pollutant

Noun

Seventy-five chemicals and four chemical groups (microplastics, pharmaceuticals, PFAS chemicals, and disinfection byproducts) were listed on the 2026 contaminant list.

— Susanne Rust Follow, Los Angeles Times, 30 June 2026
Hazardous materials crews also responded because of concerns that water used to fight the fire could carry chemicals and other contaminants into nearby storm drains.

— Drew Aunkst, CBS News, 30 June 2026

Definition of contaminant

Noun

Without effective cleaning and sanitizing, these contaminants can be difficult to remove and may increase the risk of cross-contamination.

— Mary Marlowe Leverette, The Spruce, 28 June 2026
As mentioned, the four-color Benchy demonstrated accurate color registration with minimal visible contamination between color transitions.

— Michael Lydick, PC Magazine, 27 June 2026

Definition of contamination

Browse Nearby Words

poll taxes

pollutant

pollutants

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“Pollutant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/pollutant. Accessed 7 Jul. 2026.

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Synonyms of pollutant

noun

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