Definition of vitiate in English:



  • 1Spoil or impair the quality or efficiency of.

    ‘development programmes have been vitiated by the rise in population’
    • ‘Might this vitiate the importance of the cover?’
    • ‘The state's interest in effective crime-fighting should never vitiate the citizens' Bill of Rights.’
    • ‘In spite of our capacity for good, we seem caught in a web of evil that vitiates everything we do. Even what is basically good can be distorted.’
    • ‘This property of addictive desires distorts the phenomenological field of agency in such a way that my powers of reflective self-control are vitiated but not destroyed.’
    • ‘While O'Herlihy's panel gives his show more depth, the comedy programme presented by Keane and Taylor is vitiated by a cacophony of voices.’
    • ‘To what extent will imperfect, but still good, administration vitiate the efficiency properties of the tax?’
    • ‘That the singer, Cervantes' Don Quixote, is certainly delusional, possibly mad, doesn't vitiate the song's potency.’
    • ‘Multiple entitlements vitiate demands based on prior existence, occupance, use and discovery.’
    • ‘But in this same answer, that great saint recounts another admirable example of a great zeal, proceeding from a very good soul, which was however spoilt and vitiated by the excess of anger which it had stirred up.’
    • ‘In a situation that involves a plurality of faiths, a common dress code thus strikes me as a medium of secular arbitration, a function that is vitiated by a blatant divergence from the uniform.’
    • ‘The way is never neglected, it simply is not exploited; for it is to De Sica's purpose to move in tandem with unelliptical life as closely as he dares without vitiating motion-picture technique altogether.’
    • ‘This kind of meaningless rhetoric vitiates Craven's discussion of the issue.’
    ruin, wreck, destroy, upset, undo, mess up, make a mess of, dash, sabotage, scupper, scotch, torpedo, blast
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    1. 1.1 Destroy or impair the legal validity of.
      ‘the insurance is vitiated because of foolish acts on the part of the tenant’
      • ‘Finally, an apparently valid consent may be vitiated if it is obtained by fraud, which includes cases where a professional deliberately withholds information in bad faith, or by misrepresenting the nature of the proposed care.’
      • ‘As with any other contracts, compromises or consent orders may be vitiated by a common mistake of law.’
      • ‘There is abundant authority to show that such frauds as these vitiate consent both in the case of rape and in the case of indecent assault.’
      • ‘There must be present some factor which could in law be regarded as coercion of will so as to vitiate consent.’
      • ‘One important issue is when an apparent consent will be vitiated because it was given under duress or without full knowledge of the material facts.’
      • ‘This does not mean that every deviation from procedural regularity and legal correctness vitiates a jury's verdict of guilty.’
      • ‘The judge's discretion was therefore vitiated because the merits of any defence were considerably greater than he had been led to believe.’
      • ‘And why should he be made bankrupt if his apparent inability to pay is vitiated by the counterclaim or cross-demand?’
      • ‘It is our submission that the course adopted by the learned trial judge has vitiated the verdict in a number of ways.’
      • ‘Of course the appellate tribunal also has the power to overturn the Commissioners' conclusion on the ground of an error of law, but only if that error vitiates the conclusion.’
      • ‘Under the old law a mistake would vitiate the expert's determination if it could be shown that it affected the result.’
      • ‘It is said on behalf of the Claimant that this vitiated the decision-making process because it was misleading.’
      • ‘As a matter of natural justice and procedural fairness, if his departure is so radical as to vitiate the agreement, that would have to be pursued.’
      • ‘In the first place the market manager's presence and hearsay evidence vitiated proceedings, it being against natural justice for a prosecutor to be present during deliberations.’
      • ‘For reasons already given we do not accept that the judge's self-direction was vitiated by legal misdirection.’
      • ‘The claimants submit that that is a decision to which no reasonable planning authority could come and it vitiates the defendant's consideration of the planning application.’
      • ‘The error has the consequence of vitiating the inspector's finding that the development does not accord with the policy.’
      • ‘Is not your problem that the sentencing judge made mistakes which vitiated his decision and enabled the Court of Criminal Appeal to exercise its own discretion?’
      • ‘I am not satisfied that the first or third of those matters affected the Judge's judgment to the point where any error should vitiate that judgment.’
      • ‘There is nothing in the law which would allow me to vitiate a fairly negotiated contract for lawful purposes.’
      put an end to, do away with, get rid of, scrap, end, stop, terminate, eradicate, eliminate, exterminate, destroy, annihilate, stamp out, obliterate, wipe out, extinguish, quash, expunge, extirpate
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Mid 16th century: from Latin vitiat- ‘impaired’, from the verb vitiare, from vitium (see vice).