Synonyms of contaminated

contaminated 1 of 2

adjective

kən-ˈta-mə-ˌnā-təd 

as in polluted

containing foreign or lower-grade substances

the hospitals had no choice but to throw out the contaminated blood supply

Synonyms & Similar Words

• polluted
• thinned
• diluted
• dilute
• tainted
• adulterated
• mixed
• blended
• impure
• alloyed
• weakened
• soiled
• combined
• corrupted
• spoiled
• unfiltered
• compounded
• adulterate
• fouled
• dirtied
• debased
• defiled
• incorporated
• unclarified
• commingled
• begrimed
• merged
• intermingled
• sullied
• mingled
• intermixed
• befouled
• unrefined
• besmirched
• maculate
• bemired
• coalesced
• doctored
• cheapened

Antonyms & Near Antonyms

• uncontaminated
• pure
• fine
• unpolluted
• undiluted
• untainted
• unmixed
• uncut
• unadulterated
• purified
• refined
• unalloyed
• filtered
• plain
• concentrated
• straight
• neat
• strong
• ultrapure
• sterile
• uncombined
• pasteurized
• clean
• clarified
• sterilized
• ultrarefined
• stainless
• spotless
• immaculate
• unsullied
• unsoiled

contaminated

2 of 2

verb

past tense of contaminate

as in poisoned

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

Synonyms & Similar Words

• polluted
• poisoned
• tainted
• infected
• defiled
• fouled
• befouled
• stained
• soiled
• diluted
• sullied
• adulterated
• smudged
• dirtied
• blackened
• corrupted
• rotted
• mired
• muddied
• besmirched
• begrimed
• spoiled
• grimed
• watered down
• smirched
• fouled up
• doctored

Antonyms & Near Antonyms

• purified
• cleaned
• distilled
• cleared
• cleansed
• decontaminated
• purged
• filtered
• clarified
• sterilized
• disinfected
• sanitized

Example Sentences

Recent Examples of contaminated

Adjective

The parasite infects food that has come into contact with human feces, most commonly when produce is irrigated or washed with contaminated water. — Los Angeles Times, 3 Aug. 2026

The infection is caused by ingesting the microscopic cyclospora parasite, typically from contaminated food. — Bloomberg, Oc Register, 3 Aug. 2026

Verb

If one contaminated leaf enters a batch, the parasite could potentially spread to other leaves in the same bag. — Tiffany Acosta, AZCentral.com, 11 Aug. 2026

It’s alleged that Cicero resident Belgio, who has a toddler daughter, Carmela, with his fiancée, Melanie Stayer, became severely ill and was left in a coma for months after eating contaminated raw oysters at the steakhouse on June 30. — Adam England, PEOPLE, 11 Aug. 2026