invalidity
C1formal
Definition
Meaning
the state of being legally or officially unacceptable; lack of validity
can also refer to the condition of being physically or mentally disabled
Linguistics
Semantic Notes
Typically used in legal, contractual, or administrative contexts when discussing the nullity of agreements, documents, or arguments. Can sometimes overlap with medical/disability terminology in British English.
Dialectal Variation
British vs American Usage
Differences
In British English, 'invalidity' is more commonly used in disability/incapacity contexts (e.g., invalidity benefit). In American English, it's almost exclusively used for legal/contractual nullity.
Connotations
In UK: Can carry neutral administrative or medical connotations. In US: Primarily legal/formal, with no medical association.
Frequency
Low frequency in everyday speech in both varieties; higher in legal/administrative writing.
Vocabulary
Collocations
Grammar
Valency Patterns
the invalidity of [document/argument/claim]declare/prove/establish the invalidityon grounds of invalidityVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Used in contracts and compliance: 'The clause's invalidity doesn't affect the rest of the agreement.'
Academic
In logic/philosophy: 'The invalidity of the syllogism was demonstrated.'
Everyday
Rare in casual conversation; might appear in formal discussions: 'The invalidity of his passport caused issues.'
Technical
Legal/patent contexts: 'The court affirmed the invalidity of the patent.'
Examples
By Part of Speech
verb
British English
- The tribunal invalidated the claim.
- They sought to invalidate the election results.
American English
- The court invalidated the statute.
- New evidence invalidated the earlier ruling.
adverb
British English
- The form was invalidly completed.
- He was invalidly registered as a voter.
American English
- The license was invalidly issued.
- The petition was invalidly submitted.
adjective
British English
- The permit was declared invalid.
- An invalid signature renders the document void.
American English
- The contract is invalid under state law.
- Your parking pass is invalid after midnight.
Examples
By CEFR Level
- The invalidity of the ticket meant we couldn't board the train.
- They questioned the invalidity of the old rule.
- The lawyer argued for the invalidity of the contract due to undue influence.
- A technical error led to the invalidity of the entire application.
- The constitutional court examined the invalidity of the statute under EU law.
- Philosophical debates often hinge on the invalidity of certain logical premises.
Learning
Memory Aids
Mnemonic
Think: IN-VALID-ITY — something that is NOT valid.
Conceptual Metaphor
VALIDITY IS STRENGTH / INVALIDITY IS WEAKNESS (a weak argument, a fragile contract)
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'инвалидность' (disability) in all contexts.
- In legal contexts, prefer 'недействительность'.
- Avoid using as a direct equivalent for 'неправильность' (incorrectness).
Common Mistakes
- Using 'invalidity' to mean 'falsehood' rather than 'lack of legal force'.
- Confusing with 'invalid' (disabled person) in British contexts.
- Misspelling as 'invality' or 'invalidty'.
Practice
Quiz
In which context is 'invalidity' LEAST likely to be used?
FAQ
Frequently Asked Questions
No. 'Invalid' is an adjective meaning not valid, or a noun (mainly British) for a disabled person. 'Invalidity' is the noun for the state of being invalid.
In British English, it can refer to chronic illness or disability (e.g., 'invalidity benefit'), but this usage is declining. In American English, it almost never refers to health.
They are close synonyms in legal contexts, but 'voidness' often implies something is null from the beginning, while 'invalidity' can also apply to something that becomes invalid later.
It is a low-frequency, formal word primarily used in legal, administrative, academic, or technical writing. It is rare in everyday conversation.
Explore