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invalidate

Word family (noun) validity ≠ invalidity (adjective) valid ≠ invalid (verb) validate ≠ invalidate
From Longman Dictionary of Contemporary Englishinvalidatein‧val‧i‧date /ɪnˈvælədeɪt/ ●くろまる○しろまる○しろまる AWL verb [transitive] 1 USE somethingto make a document, ticket, claim etc no longer legally or officially acceptable Failure to disclose all relevant changes may invalidate your policy.2 WRONG/INCORRECTto show that something such as a belief or explanation is wrong Later findings invalidated the theory.→ See Verb table Examples from the Corpusinvalidate• 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 elements of Christianity that come from older beliefs do not necessarily invalidate the religion.• The Educational Testing Service invalidated the scores of 18 students.From Longman Business Dictionaryinvalidatein‧val‧i‧date /ɪnˈvælədeɪt/ verb [transitive] LAW to make a contract, agreement, document etc invalid Failure to follow the instructions correctly could invalidate the guarantee.The Judge’s ruling invalidated the company’s patent. —invalidation noun [uncountable]The Court of Appeals refused to reconsider its previous invalidation of the contract.→ See Verb table
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Verb table
invalidate
Simple Form
Present
I, you, we, they invalidate
he, she, it invalidates
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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
> View Less
Continuous Form
Present
I am invalidating
he, she, it is invalidating
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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
> View Less
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