1. the act of making something faulty, defective, or invalid
Usage: formal
2. the process of spoiling or contaminating something
Usage: formal

Examples

• The vitiation of the contract occurred due to fraudulent misrepresentation.
• Environmental vitiation from industrial waste threatened the local ecosystem.
• The lawyer argued that vitiation of the agreement made it legally void.
• Air vitiation in the sealed chamber posed health risks to workers.
• The vitiation of evidence compromised the entire investigation.
• Chemical vitiation of the water supply required immediate remediation.