What does adulterating mean?
"Adulterating" is the present participle of the verb "adulterate," meaning to make something — most often food, drink, or medicine — worse in quality by secretly adding an inferior or foreign substance. The word appears frequently in legal and regulatory contexts, where adulterating products is treated as a form of fraud: a merchant might be prosecuted for adulterating olive oil with cheaper seed oil, or adulterating spices with dyed fillers. It can also be used figuratively to describe the debasement of something valued for its purity, such as adulterating a literary classic with modern additions. The term carries strong negative connotations of deception and contamination, and it derives from the Latin "adulterare," the same root that produced "adultery." Related forms include "adulteration," "adulterant," and "unadulterated."
verbPresent participle and gerund of "adulterate": to make something poorer in quality by adding another, usually inferior, substance — especially food or drink.
- To lower the quality of a substance (especially food, drink, or drugs) by adding an inferior or foreign ingredient.
- To make something impure or weaker in a figurative sense, such as diluting the quality of language, art, or tradition.
"The company was fined for adulterating its olive oil with cheaper seed oils."
"Inspectors discovered the dairy was adulterating its milk with water and starch."
"Critics accused the filmmaker of adulterating a classic story with unnecessary special effects."
The same Latin root that gives us "adultery" also gives us "adulterating" — both mean corrupting something pure by mixing in what doesn't belong.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of adulterating
"Adulterating" comes from the Latin "adulterare," meaning to corrupt or pollute, formed from "ad-" (toward) plus "alter" (other) — literally to make something other than what it should be. The verb entered English in the early 16th century via Middle French. It shares its root with "adultery" and "adulterer," which originally carried the broader sense of corruption before narrowing to their marital sense.
Related word forms
How adulterating is actually used
Formal register, most common in legal, regulatory, and journalistic contexts concerning food safety and product purity. It carries strongly negative connotations of fraud or deception. The verb is typically transitive and often appears in the pattern "adulterate X with Y."
Easily confused with adulterating
"Adulting" is informal slang for behaving like a responsible adult, while "adulterating" means degrading something by adding inferior substances.