Word.ws English Dictionary

Past tense of contaminate

regular verb

The past tense of contaminate is contaminated. The past participle is also contaminated.

Forms of contaminate

Base form (V1)contaminate /kənˈtæmɪneɪt/
Past tense (V2)contaminated
Past participle (V3)contaminated
Present participlecontaminating
Third person singularcontaminates

Contaminated in a sentence

  • This water is contaminated. It isn't safe to drink.
  • The Nevada test site is contaminated with radiation after years of nuclear testing.From the entry test site
  • However, run-off from these operations have contaminated waters and heavily damaged nearby and downstream ecology.[2024 August 20, Lobsang Gelek, “EXPLAINED: The impact of climate change on the Tibetan plateau”, in Boer Deng, editor, Radio Free Asia…. From the entry Maqên
  • Slobbers is a symptom of another problem, such as an abscessed tooth or contaminated hay.2015 April 21, Sue Weaver, Ann Larkin Hansen, Cherie Langlois, Arie McFarlen, Chris McLaughlin, Hobby Farm Animals: A Comprehensive Guide…. From the entry slobbers
  • Contaminated salads remain the most common cause of traveler's diarrhea in countries where the climate is hot.2010, The Digestive System, →ISBN, page 179. From the entry traveler's diarrhea

Meaning of contaminate

  1. verb To make something dangerous or toxic by introducing impurities or foreign matter.
  2. verb To soil, stain, corrupt, or infect by contact or association.
  3. verb To make unfit for use by the introduction of unwholesome or undesirable elements.

Full definition of contaminate

Questions about the past tense of contaminate

What is the past tense of contaminate?
The past tense of contaminate is contaminated.
What is the past participle of contaminate?
The past participle of contaminate is contaminated.
Is contaminate a regular or irregular verb?
Contaminate is a regular verb: its past tense adds -d.

Source and license

Adapted from Wiktionary: contaminate (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Past tense of contaminate.” Word.ws, https://word.ws/past-tense/contaminate. Based on Wiktionary, CC BY-SA 4.0.