Taint (something) with (something) bare infinitive
To contaminate something with toxic substances.
The police concluded a toy factory that tainted the water in the lake with untreated sewage.
After the nuclear disaster, water and air sources surrounding Fukushima Daiichi Nuclear Power Plant were tainted with radioactive substances in 2011.
To spoil, damage, or degrade anything positive by the presence or introduction of something awful, sad, or terribly unpleasant.
Jane is tainting her career as a singer with her bad attitude.
He tainted his reputation with a scandal.
A child with great talent and intelligence will lose those qualities over time.
To interfere somebosy's plan or bussiness
To think that someone or something has the same bad qualities as another person or thing.
Extremely angry
The verb "taint" should be conjugated according to its tense.