vitiate

/ˈvɪʃiˌeɪt/
verb
  1. To spoil or reduce the quality, value, or effectiveness of something.
    • Adding too much salt can vitiate the flavor of the soup.
    • A single error in the data can vitiate the entire research study.
    • The constant interruptions vitiated the team's focus during the meeting.
  2. To make something legally invalid or void.
    • A contract signed under pressure may be vitiated by a court.
    • The lawyer argued that the lack of a witness vitiated the will.
    • Any fraud in the application process will vitiate the agreement.
What does "vitiate" mean? | whatsthatwordmean | whatsthatwordmean