invalidate

English

Etymology

First attested in 1649; borrowed from Middle French invalider, from invalide +‎ -er. By surface analysis, in- +‎ validate or invalid +‎ -ate.

Pronunciation

• (UK) IPA^(key): /ɪnˈvæl.ɪ.deɪt/
• (US) IPA^(key): /ɪnˈvæl.əˌdeɪt/

  • Audio (US):

    (file)

• (General Australian) IPA^(key): /ɪnˈvæl.ə.dæɪt/

Verb

invalidate (third-person singular simple present invalidates, present participle invalidating, simple past and past participle invalidated)

1. To make invalid. Especially applied to contract law.

   Synonym: extinguish

   The circuit court judge's ruling was invalidated by a superior judge.

2. To make or declare (an argument, statement, or theory) unsound or erroneous; disprove.
3. To render invalid; discredit.

   Telling an angry person to "calm down" can invalidate their feelings.

Synonyms

• disprove
• vitiate
• negate

Antonyms

• validate

Derived terms

• invalidator
• microinvalidate

Translations

to make invalid

Bulgarian: обезсилвам (bg) (obezsilvam), анулирам (bg) (anuliram) Catalan: invalidar (ca) Chinese: Mandarin: 使無效 / 使无效 Czech: zneplatnit pf Dutch: ontkrachten (nl) Finnish: mitätöidä (fi) French: invalider (fr) German: entkräften (de) Greek: Ancient: ἀθετέω (athetéō) Hindi: निरस्त (hi) (nirast) Hungarian: érvénytelenít (hu), hatálytalanít (hu) Ido: desvalidigar (io) Latin: invalidō Maori: whakanoa, whakamanakore Ottoman Turkish: ابطال ایتمك (ibtâl etmek), بوزمق (bozmak) Polish: unieważniać (pl) impf, unieważnić (pl) pf Slovak: zneplatniť pf Spanish: invalidar (es) Swedish: ogiltigförklara (sv) Turkish: geçersizleştirmek (tr), hükümsüz kılmak (tr) Ukrainian: скасува́ти (uk) pf (skasuváty)

Italian

Etymology 1

Verb

invalidate

1. inflection of invalidare:
   1. second-person plural present indicative
   2. second-person plural imperative

Etymology 2

Participle

invalidate f pl

1. feminine plural of invalidato

Spanish

Verb

invalidate

1. second-person singular voseo imperative of invalidar combined with te