Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary




Synonyms and Antonyms of contaminant

  1. something that is or that makes impure <a filter to remove contaminants from the drinking water> Synonyms adulterant, impurity, contamination, defilement, pollutantRelated Words blot, blotch, spot, stain, taint; dirt, filth, grime, muck, scum, sludge, smut, soil; blemish, defect, disfigurement, fault, flaw; abnormality, imperfection, irregularityNear Antonyms clarifier, filter, purifier, refiner; cleanliness, immaculateness, purity

Learn More about contaminant

Seen and Heard

What made you want to look up contaminant? Please tell us where you read or heard it (including the quote, if possible).