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

Instead, investigators look at patient samples and interviews, food receipts and information from the food supply chain to determine where the contaminated food likely came from. — Berkeley Lovelace Jr, NBC news, 20 July 2026

In February, the district notified the DTSC of its plan to remediate contaminated soil, during which its contractor would cut down 193 trees, among them some that fall under the city’s tree protection ordinance. — Los Angeles Times, 19 July 2026

Verb

People become infected with the illness by consuming food or water that has been contaminated — the infection is not transmitted from person to person. — Karen Garcia, Los Angeles Times, 23 July 2026

In outbreaks, raw fruits and vegetables become contaminated with the parasite, which spreads through water used in irrigation and processing. — Megan Poinski, Forbes.com, 22 July 2026