Synonyms of pollutant

pollutant

noun

pə-ˈlü-tᵊnt 

as in contaminant

something that is or that makes impure

filtered the pollutants out of the water

Synonyms & Similar Words

• contaminant
• contamination
• sludge
• defect
• impurity
• soil
• irregularity
• stain
• adulterant
• defilement
• dirt
• taint
• spot
• abnormality
• muck
• filth
• grime
• blot
• fault
• scum
• blotch
• flaw
• smut
• disfigurement
• blemish
• imperfection

Antonyms & Near Antonyms

• filter
• purifier
• refiner
• clarifier
• purity
• cleanliness
• immaculateness

Example Sentences

Recent Examples of pollutant

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

Furthermore, capturing stormwater runoff helps protect the environment by preventing soil erosion and keeping pollutants out of local waterways. — Sj McShane, Martha Stewart, 3 July 2026

Those pollutants worsen air quality and can have impacts on public health. — Arizona Republic, AZCentral.com, 2 July 2026

The uninterrupted sun dries out soil increasing drought risk, and light winds allow pollutants to build up, worsening air quality, particularly in urban areas. — Janet Loehrke, USA Today, 1 July 2026