in bad faith

Idioms  

1. With the intention of deceiving someone or doing harm, as in I'm sure they were acting in bad faith and never planned to pay us. This expression was first recorded in 1631. The antonym, in good faith, meaning “sincerely and honestly,” as in I signed that contract in good faith, dates from about 1350.

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Example Sentences

Unionized Post-Gazette editorial staff have been on strike since October 2022, pushing for better wages and healthcare benefits and accusing the company of years of bargaining in bad faith.

From The Wall Street Journal

"I must also stress that some tweets have been completely misunderstood, seemingly in bad faith," he added.

From Barron's

Fattah said he took allegations of antisemitism "very seriously" while arguing some of the posts had been "misunderstood, seemingly in bad faith".

From BBC

The judge ruled that changing it was in bad faith.

From BBC

He also denies acting in "bad faith" against Llinos Griffin-Williams.

From BBC