Meanings
present singular third person invalidates · participle present invalidating · participle past invalidated · past invalidated
- To make invalid (especially in to contract law)
The circuit court judge's ruling was invalidated by a superior judge.
Synonyms: extinguish, nullify
- To make or declare (an argument, statement, or theory) unsound or erroneous; disprove.
The multiplicity of moral opinions is an empirical fact and does not invalidate the contention that there is only one morality par excellence.
1978 [1976], Leszek Kołakowski, translated by P[aul] S[teven] Falla, Main Currents of Marxism, volume II: The Golden Age, Oxford: Clarendon Press, translation of Główne nurty marksizmu: rozwój (in Polish), →ISBN, →OCLC, page 181
Synonyms & antonyms
verbTo make invalid (especially in to contract law)
More synonyms by meaning
verbtake away the legal force of or render ineffective
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Middle Frenchinvalider
- Englishinvalidate
First attested in 1649; borrowed from Middle French invalider, from invalide + -er. By surface analysis, in- + validate or invalid + -ate.
More words from Middle French
Full word history & related roots →Translations
Ancient Greek ἀθετέω
- ἀθετέω (athetéō)to make invalid
Bulgarian обезсилвам, анулирам
- обезсилвам (obezsilvam)to make invalid
- анулирам (anuliram)to make invalid
Catalan invalidar
- invalidarto make invalid
Chinese Mandarin 使無效 /使无效
- 使無效 /使无效to make invalid
Czech zneplatnit
- zneplatnitto make invalid
Dutch ontkrachten
- ontkrachtento make invalid
Finnish mitätöidä
- mitätöidäto make invalid
French invalider
- invaliderto make invalid
German entkräften
- entkräftento make invalid
Hindi निरस्त
- निरस्त (nirast)to make invalid
Hungarian érvénytelenít, hatálytalanít
- érvénytelenítto make invalid
- hatálytalanítto make invalid
Latin invalidō
- invalidōto make invalid
Māori whakanoa, whakamanakore
- whakanoato make invalid
- whakamanakoreto make invalid
Polish unieważniać, unieważnić
- unieważniaćto make invalid
- unieważnićto make invalid
Slovak zneplatniť
- zneplatniťto make invalid
Spanish invalidar
- invalidarto make invalid
Swedish ogiltigförklara
- ogiltigförklarato make invalid
Turkish geçersizleştirmek, hükümsüz kılmak
- geçersizleştirmekto make invalid
- hükümsüz kılmakto make invalid
Ukrainian скасува́ти
- скасува́ти (skasuváty)to make invalid
Cite this entry
invalidate. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/invalidate
“invalidate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/invalidate. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “invalidate,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/invalidate.
Source: invalidate on Wiktionary, CC BY-SA 4.0.