go against

phr.v. to oppose someone or something, or to fight against a decision.

phr.v. to actively oppose, resist, or challenge a person, group, or established authority.

“It is difficult to go against the wishes of your entire family.”

“The junior senator decided to go against his party's leadership by voting against the controversial new tax bill.”

phr.v. to be the opposite of what a rule, law, or feeling says is right.

phr.v. to be contrary to or in violation of a specific principle, law, trend, or natural instinct.

“Telling a lie goes against my principles.”

“The company's decision to dump waste in the river goes against every environmental regulation currently in place.”

phr.v. when a formal decision, like a court case, is not in your favour.

phr.v. to result in an unfavourable outcome for a specific party, typically in a legal or competitive context.

“We were disappointed when the judge's final decision went against us.”

“Legal experts suggest that if the ruling goes against the corporation, they may be forced to declare bankruptcy immediately.”

Formal