taint

¹ American  

[teynt] / teɪnt /

noun

1. a trace of something bad, offensive, or harmful.

   Synonyms:

   stain, blemish, spot, fault, flaw, defect

2. a trace of infection, contamination, or the like.

3. a trace of dishonor or discredit.

4. Obsolete. color; tint.

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verb (used with object)

1. to modify by or as if by a trace of something offensive or deleterious.

2. to infect, contaminate, corrupt, or spoil.

   Synonyms:

   poison, pollute, defile

3. to sully or tarnish (a person's name, reputation, etc.).

   Synonyms:

   stain, dishonor

4. Obsolete. to color or tint.

verb (used without object)

1. to become tainted; spoil.

taint ² American  

Or t'aint

noun

Slang: Vulgar.

1. the area between the testicles or vulva and the anus; the perineum.

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taint British  

/ teɪnt /

verb

1. to affect or be affected by pollution or contamination

   oil has tainted the water

2. to tarnish (someone's reputation, etc)

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noun

1. a defect or flaw

   a taint on someone's reputation

2. a trace of contamination or infection

Other Word Forms

• taintless adjective
• untainting adjective

Etymology

Origin of taint¹

First recorded in 1325–75; conflation of Middle English taynt, shortened variant of attaint “struck, attainted,” past participle of attainten “to convict” ( see attaint), late Middle English taynt “hue, tint” ( see tint), from Anglo-French teint or directly from Latin tinctus, equivalent to ting(ere) “to dye, color“ ( see tinge) + -tus suffix of verb action); and teinte, from Late Latin tincta “inked stroke,” noun use of feminine of past participle of tingere

Origin of taint²

First recorded in 1955–60; casual pronunciation of it ain’t (the one or the other), i.e., it is the area in between

Explanation

Taint means to contaminate. If you don’t want to taint your drinking water, don’t use an old gas can as a water pitcher. Tainting something makes it impure. To taint something is to spoil or corrupt it, whether it’s water, food, or even a person’s soul. These days, taint gets in the news if a company accidentally taints meat with salmonella bacteria, for example. If you add something poisonous to a substance, you taint it. A silly person might say when you taint something, t’aint right.

Example Sentences

“It’s a crisis for a unit when its head is suspected of such serious violations of the law,” he said, adding that the episode shouldn’t “contaminate and taint the entire unit.”

From The Wall Street Journal • Oct. 31, 2025

He also voiced concern that the draft lottery debate could "negatively taint the whole effort".

From Barron's • Oct. 18, 2025

And it’s all too easy to accidentally taint a drop of blood at home.

From Slate • May 28, 2025

In doing so, they become less compelling and less likely to taint your interpretations of future interactions.

From Los Angeles Times • May 14, 2025

“I’ve picked hit; I reckon taint no more than fair fer hit to pick me once in a while.”

From "The Sound and the Fury" by William Faulkner

Related Words

• besmirch
• blight
• cloud
• corrupt
• damage
• discredit
• harm
• hurt
• infect
• muddy
• poison
• pollute
• smear
• spoil
• stain
• sully
• tar
• tarnish