is not valid

USAGE SUMMARY

"is not valid" is a grammatically correct phrase and can be used in written English.
It is commonly used to express that something is incorrect or not accepted as true. Example: The credit card number she entered is not valid.

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

That command is not valid".

The New Yorker

Offer is not valid in outlet stores.

Independent

"Alex's perceived transcontinental record is not valid.

The New York Times - Sports

This means the court's critical ruling is not valid.

The Guardian

Sorry, your college ID is not valid here.

The New York Times

And since Sept. 11 we have known that theory is not valid".

The New York Times - Travel

It is not valid if it is just for the sporting event," he told the Guardian.

The Guardian - Sport

The prize is not valid with any other promotion or offer.

The Guardian

I spit on the church when it says our marriage is not valid".

The New York Times

This argument, however, is not valid, 'it is false, untrue, a form of male chauvinism'.

The Guardian

But a contradiction is not valid; hence, the calculus is consistent.

Encyclopedia Britannica

Expert writing Tips

Best practice

Use "is not valid" when you want to clearly state that something does not meet the required criteria or standards. It's a direct and unambiguous way to express invalidity.

Common error

While "is not valid" is grammatically correct, it can sound overly formal in casual conversations. Consider using more relaxed alternatives like "doesn't work" or "isn't right" in informal settings.

Linguistic Context

The phrase "is not valid" functions as a negative assertion, used to declare that something does not meet certain criteria or standards. Ludwig shows examples from various contexts, indicating widespread applicability.

Expression frequency: Very common

Frequent in

Science

35%

News & Media

30%

Encyclopedias

10%

Less common in

Wiki

5%

Formal & Business

5%

Reference

0%

Ludwig's WRAP-UP

The phrase "is not valid" is a versatile expression used to negate the correctness or legitimacy of something. Ludwig AI confirms it's grammatically correct and commonly used. Its frequency spans across various domains, including Science, News & Media, and Encyclopedias. While "is not valid" is appropriate for formal contexts, remember to adjust your language for more casual settings. Alternatives such as "is incorrect" and "is illegitimate" can provide similar meanings with slight differences in nuance. Using "is not valid" effectively involves understanding its communicative purpose and adapting it to the formality of the situation.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

is incorrect

This alternative focuses on the factual inaccuracy of something.

is illegitimate

This alternative emphasizes the lack of legal or moral authorization.

is not acceptable

This suggests that something does not meet the required standards or criteria.

is not applicable

This indicates that something does not apply to a specific situation or context.

does not hold

This suggests that a statement or claim is not true or sustainable.

is unfounded

This implies that something lacks a solid basis or justification.

is untenable

This suggests that a position or argument cannot be defended.

is flawed

This indicates that something has defects or imperfections.

is null and void

This alternative emphasizes that something has no legal force or effect.

is without merit

This implies that something lacks value or worth.

FAQs

What does "is not valid" mean?

The phrase "is not valid" means something is incorrect, illegitimate, or does not meet the required standards or criteria. It's used to indicate that something should not be accepted or considered true.

What can I say instead of "is not valid"?

You can use alternatives like "is incorrect", "is illegitimate", or "is not acceptable" depending on the specific context.

When is it appropriate to use the phrase "is not valid"?

The phrase "is not valid" is appropriate in formal and professional settings when you need to clearly and directly state that something is incorrect, illegitimate, or doesn't meet the necessary standards.

How to use "is not valid" in a sentence?

You can use "is not valid" in a sentence to express that a particular argument, claim, or document is not legitimate or acceptable. For example, "This hypothesis is not valid because the data contradicts it."