1. to act in opposition to; to violate or go against (a law, rule, or principle)
Usage: formal
2. to contradict or deny the truth of something
Usage: formal

Examples

• The new policy contravenes federal regulations on workplace safety.
• His actions clearly contravene the terms of his contract.
• The company was fined for contravening environmental laws.
• This evidence contravenes your earlier testimony.
• The judge ruled that the ordinance contravenes the state constitution.
• Her statement contravenes everything we know about the incident.