CONTAMINANT Synonyms: 33 Similar and Opposite Words

contaminant

noun

kən-ˈta-mə-nənt

Definition of contaminant

as in contamination

something that is or that makes impure a filter to remove contaminants from the drinking 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 contaminant Rather than filtering contaminants out and concentrating them into waste, this method uses ozone gas and naturally occurring microbes to break contaminants down instead of just isolating them. — Piper Heath, Los Angeles Times, 16 Sep. 2026 State law requires parents and guardians of students at schools near certain crematorium projects to receive notification about the potential for toxic air contaminants. — Madisen Keavy, CBS News, 16 Sep. 2026 Hardness is not a contaminant that every report is required to include. — Ryan Brennan, Kansas City Star, 15 Sep. 2026 This contaminant accumulates in larger fish that eat smaller fish. — Angela Ryan Lee, Verywell Health, 10 Sep. 2026 See All Example Sentences for contaminant

Recent Examples of Synonyms for contaminant

Noun

In particular, many residents are worried about high water usage, water and land contamination, and human health impacts due to the energy-intensive, 24/7 operations.

— Taylor O'Connor, Kansas City Star, 22 Sep. 2026
Galileo's demise also demonstrated a bit of planetary protection for NASA, which would later recreate the death dive at Saturn with Cassini's Grand Finale as way to protect that planet's icy moons from contamination as well.

— Tariq Malik, Space.com, 21 Sep. 2026

Definition of contamination

Noun

Burning fossil fuels releases pollutants that form fine particles and ground-level ozone, increasing risks of heart and lung disease and premature death.

— Akshaya Jha, The Conversation, 22 Sep. 2026
Wastewater treatment removes a large share of those pollutants, but not everything disappears.

— Ryan Brennan, Fort Worth Star-Telegram, 17 Sep. 2026

Definition of pollutant

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contains

contaminant

contaminants

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“Contaminant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/contaminant. Accessed 29 Sep. 2026.

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Synonyms of contaminant

noun

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