Examples of “vitiate” in a Sentence

verb To spoil something or lower its quality or usefulness.

• Unfortunately, as Anderson and Sørenson (1996) and Bowsher (2002) document, instrument proliferation can vitiate the test. — David Roodman, A Short Note on the Theme of Too Many Instruments (2007)
• �Mr Rose,’ says the Physician, ‘this man was brought to us from Russia. Precisely such a case of vitiated judgment as I describe at length in my Treatise on Madness. Mayhap you have read it?’ — Andrew Miller, Ingenious Pain (1997)

verb To make something invalid or no longer effective.

• After the trials, Turkey's secular elite was completely vitiated. — Dexter Filkins, Turkey's Thirty-Year Coup (2011)