From Longman Dictionary of Contemporary Englishin bad faithin bad faithDISHONESTif someone does something in bad faith, they are behaving dishonestly and have no intention of keeping a promise In order to sue, you have to prove that the company was acting in bad faith. → bad
Examples from the Corpus
in bad faith• In order to sue, you have to prove that the company was acting in bad faith.• And some councils are acting in bad faith.• In Anisminic, Lord Reid gave the following examples: It may have given its decision in bad faith.• School officials can lose this qualified privilege if they act in bad faith or without regard for whether the statements are true. 