CONTAMINATIVE Synonyms: 40 Similar and Opposite Words

Q: How does the verb 'contaminate' contrast with its synonyms?

Some common synonyms of contaminate are defile , pollute , and taint . While all these words mean "to make impure or unclean," contaminate implies intrusion of or contact with dirt or foulness from an outside source. // water contaminated by industrial wastes

Q: When can 'defile' be used instead of 'contaminate'?

Although the words defile and contaminate have much in common, defile implies befouling of what could or should have been kept clean and pure or held sacred and commonly suggests violation or desecration. // defile a hero's memory with slanderous innuendo

Q: When is 'pollute' a more appropriate choice than 'contaminate'?

The synonyms pollute and contaminate are sometimes interchangeable, but pollute , sometimes interchangeable with contaminate , distinctively may imply that the process which begins with contamination is complete and that what was pure or clean has been made foul, poisoned, or filthy. // the polluted waters of the river

Q: When is it sensible to use 'taint' instead of 'contaminate'?

The words taint and contaminate are synonyms, but do differ in nuance. Specifically, taint stresses the loss of purity or cleanliness that follows contamination. // tainted meat // a politician's tainted reputation

contaminate

verb

kən-ˈta-mə-ˌnāt

Definition of contaminate next

as in to pollute

to make unfit for use by the addition of something harmful or undesirable a supply of drinking water that was contaminated by a toxic waste dump

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How does the verb contaminate contrast with its synonyms?

Some common synonyms of contaminate are defile, pollute, and taint. While all these words mean "to make impure or unclean," contaminate implies intrusion of or contact with dirt or foulness from an outside source.

water contaminated by industrial wastes

When can defile be used instead of contaminate?

Although the words defile and contaminate have much in common, defile implies befouling of what could or should have been kept clean and pure or held sacred and commonly suggests violation or desecration.

defile a hero's memory with slanderous innuendo

When is pollute a more appropriate choice than contaminate?

The synonyms pollute and contaminate are sometimes interchangeable, but pollute, sometimes interchangeable with contaminate, distinctively may imply that the process which begins with contamination is complete and that what was pure or clean has been made foul, poisoned, or filthy.

the polluted waters of the river

When is it sensible to use taint instead of contaminate?

The words taint and contaminate are synonyms, but do differ in nuance. Specifically, taint stresses the loss of purity or cleanliness that follows contamination.

tainted meat

a politician's tainted reputation

Example Sentences

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Recent Examples of contaminate Regulators were unable to determine whether the cause of their illness was the peptides themselves or whether they had been contaminated. —

Sarah Todd, STAT, 6 Apr. 2026 In addition to worries about exacerbating water problems, there is increasing concerns about drinking water from wells and whether pesticides used at the driving range might contaminate them, Harper said. —

Kenneth R. Gosselin, Hartford Courant, 5 Apr. 2026 Putting even a small piece of trash in the recycling stream or non-compostable items in the compost bin can require additional effort to re-sort at processing facilities, which increases costs and energy usage, or contaminates the entire process altogether, ultimately creating more trash. —

Jared Kaufman, Twin Cities, 4 Apr. 2026 The agency classifies it as a superfund site, meaning the area may be contaminated with hazardous materials. —

Mark Prussin, CBS News, 4 Apr. 2026 See All Example Sentences for contaminate

Recent Examples of Synonyms for contaminate

Verb

In the Monsanto lawsuit, it is alleged that the company polluted Lake Michigan with PCBs, according to documents.

— Steve Sadin, Chicago Tribune, 7 Apr. 2026
Millions of gallons a day of raw, untreated sewage and industrial waste flows north through the Tijuana River, across the border, into the Tijuana River Estuary and out into the Pacific — polluting the air as well.

— Walker Armstrong, San Diego Union-Tribune, 5 Apr. 2026