单词	invalidate
释义	invalidatein‧val‧i‧date /ɪnˈvælədeɪt/ ●○○ AWL verb [transitive] Verb Table VERB TABLE invalidate Simple Form Present I, you, we, they invalidate he, she, it invalidates Past I, you, he, she, it, we, they invalidated Present perfect I, you, we, they have invalidated he, she, it has invalidated Past perfect I, you, he, she, it, we, they had invalidated Future I, you, he, she, it, we, they will invalidate Future perfect I, you, he, she, it, we, they will have invalidated Continuous Form Present I am invalidating he, she, it is invalidating you, we, they are invalidating Past I, he, she, it was invalidating you, we, they were invalidating Present perfect I, you, we, they have been invalidating he, she, it has been invalidating Past perfect I, you, he, she, it, we, they had been invalidating Future I, you, he, she, it, we, they will be invalidating Future perfect I, you, he, she, it, we, they will have been invalidating Examples EXAMPLES FROM OTHER DICTIONARIES If we look closely at Professor Thomson's argument, we see that his conclusion is invalidated by a number of factual errors. None of the more recent views invalidates Hahnemann's original discoveries or teachings. The Educational Testing Service invalidated the scores of 18 students. The elements of Christianity that come from older beliefs do not necessarily invalidate the religion. Thesaurus Longman Language Activatorto prove that something is wrong, untrue, or does not exist► disprove to prove that something is wrong or not true: · She was able to produce figures that disproved Smith's argument.· The existence of God is a question of faith, and therefore impossible to prove or disprove. ► refute formal to prove that what someone has said is not true: · I knew that he was lying but I had no evidence with which to refute his story.· The accusation has been wholly refuted by an in-depth analysis of the evidence. ► debunk to prove that something is not true, especially something that people have believed for a long time, and make it seem silly or unimportant: · In her book she debunks a lot of the claims made by astrologers.· Payton wants to debunk the myth that economics is a science. ► invalidate formal if a fact or piece of information invalidates an explanation or idea, it proves that it contains mistakes which make it unlikely to be true - used in scientific contexts: · None of the more recent views invalidates Hahnemann's original discoveries or teachings.· If we look closely at Professor Thomson's argument, we see that his conclusion is invalidated by a number of factual errors. ► demolish to prove that an argument or idea is completely wrong: · It would not be difficult to demolish a theory that was so obviously a load of rubbish.· There was a time when the response "that's a value judgement" would have demolished any argument in the educational field. ► explode : explode a myth/rumour to prove that something that many people think or believe is wrong or not true: · The report explodes the myth that men are bed-hopping rogues. ► negative a negative result of a medical or chemical test does not show any sign of the condition you are testing for and therefore proves it does not exist in this person or situation: · All the athletes' drugs tests were negative.· a negative pregnancy test· The first brain scan proved negative. Word family WORD FAMILYnounvalidity ≠ invalidityadjectivevalid ≠ invalidverbvalidate ≠ invalidate 1to make a document, ticket, claim etc no longer legally or officially acceptable:  Failure to disclose all relevant changes may invalidate your policy.2to show that something such as a belief or explanation is wrong:  Later findings invalidated the theory.
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