invalidateverb [ T ]
uk/ɪnˈvæl.ɪ.deɪt/us/ɪnˈvæl.ə.deɪt/to officially stop a document, ticket, law, etc. being legally or officially acceptable
to prove that an opinion, argument, etc. is wrong
Thesaurus: synonyms and related words
Proving and disproving
- actions speak louder than words idiom
- attest
- authenticate
- back sb up
- bear witness (to sth) idiom
- belie
- catch
- colour
- do justice to yourself idiom
- documentary
- evidence
- explode
- explosion
- proof
- stick
- testament
- the acid test
- the burden of proof idiom
- undocumented
- unsubstantiated
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invalidation
noun [ U ] uk/ɪnˌvæl.ɪˈdeɪ.ʃən/us/ɪnˌvæl.əˈdeɪ.ʃən/
Premature disclosure of the test sites might lead to invalidation of the experiment.