Word.ws English Dictionary

Synonyms of contaminant

9 similar words · 4 opposite words

Another word for contaminant is pollution. Other synonyms of contaminant are contamination, taint, pollutant, impurity and adulterant. The opposite of contaminant is noncontaminant.

Synonyms and similar words for contaminant

nounThat which contaminates; an impurity; foreign matter.

  • contaminatorA thing that contaminates; a contaminant.
  • contaminationSomething which contaminates.
  • pollutantA foreign substance that makes something dirty, or impure, especially waste from human activities.
  • adulterantThat which adulterates, or reduces the purity of something.
  • adulteratorOne who or that which adulterates, or harms the purity of, something.
  • impurityA component or additive that renders something else impure.
  • pollutionSomething that pollutes; a pollutant.
  • taintA contamination, decay or putrefaction, especially in food.
  • sophisticant archaicA substance used to adulterate another substance.

Opposite of contaminant

nounMore antonyms

Meaning of contaminant

  1. noun That which contaminates; an impurity; foreign matter.

Full definition of contaminant

contaminant in other languages

Questions about synonyms of contaminant

What is another word for contaminant?
Contaminant has 9 synonyms on Word.ws, such as pollution, contamination, taint, pollutant, impurity, adulterant and adulterator.
What is the opposite of contaminant?
The opposite of contaminant is noncontaminant.
What does contaminant mean?
Contaminant means that which contaminates; an impurity; foreign matter.

Source and license

Adapted from Wiktionary: contaminant (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this page: “Synonyms of contaminant.” Word.ws, https://word.ws/synonyms/contaminant. Based on Wiktionary, CC BY-SA 4.0.