is invalid

USAGE SUMMARY

The phrase "is invalid" is correct and usable in written English.
It can be used to indicate that something is not valid or acceptable, often in contexts such as legal, technical, or logical discussions. Example: "The code you entered is invalid, please try again."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

57 human-written examples

Your argument is invalid.

The Guardian - Opinion

"The outcome is invalid".

The Guardian

"Australia's claim is invalid.

The Guardian

The sentence is invalid and illegitimate.

The New York Times

If so, the later signature is invalid.

The New York Times

Mr. Williams's lawyers argue that this reservation is invalid.

The New York Times

One in eight active registrations is invalid or inaccurate.

The New York Times

But this argument, or set of arguments – there are different strands – for fiscal austerity is invalid.

The Guardian - Business

If the Eighteenth Amendmant is invalid, so is the Thirteenth, prohibiting slavery.

The New Yorker

"The ballot is invalid -- that's my position," Mr. Meggs said in an interview.

The New York Times

"The Supreme Court or the Chamber of Deputies itself will likely say this is invalid.

The New York Times

Expert writing Tips

Best practice

When using "is invalid", ensure the context clearly defines what criteria are being used to assess validity. For example, "The argument is invalid because it relies on a false premise".

Common error

While "is invalid" is appropriate in formal settings, avoid using it excessively in casual conversation. Opt for simpler alternatives like "is wrong" or "doesn't work" to maintain a natural tone.

Linguistic Context

The phrase "is invalid" functions as a predicate adjective, modifying a noun or pronoun to indicate that it does not meet the required criteria for validity. As Ludwig AI states, the expression is grammatically correct and used to show disagreement with a statement or argument.

Expression frequency: Very common

Frequent in

Science

40%

News & Media

40%

Formal & Business

20%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "is invalid" is a common and grammatically sound expression used to denote that something lacks validity or correctness. As Ludwig AI confirms, it is suitable for formal contexts and commonly found in news, scientific literature, and business communications. While alternatives like "is not valid" and "is incorrect" exist, "is invalid" serves as a precise way to express disagreement or refutation. Remember to use it judiciously in informal settings to maintain a natural tone.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

is not valid

Replaces "invalid" with its synonym "not valid", maintaining the core meaning.

is incorrect

Substitutes "invalid" with "incorrect", focusing on factual accuracy.

is not acceptable

Replaces "invalid" with "not acceptable", shifting the focus to acceptability rather than validity.

is null and void

Uses a legal term to emphasize the lack of legal effect.

is illegitimate

Replaces "invalid" with "illegitimate", suggesting a lack of authority or legality.

is not applicable

Replaces "invalid" with "not applicable", focusing on whether something applies in a given situation.

does not hold

Emphasizes the lack of validity or truth in a statement or condition.

is flawed

Replaces "invalid" with "flawed", highlighting the presence of imperfections or weaknesses.

is untenable

Replaces "invalid" with "untenable", suggesting that something cannot be defended or maintained.

is refuted

Focuses on the act of disproving or countering the validity of something.

FAQs

How can I use "is invalid" in a sentence?

You can use "is invalid" to indicate that something is not true, correct, or acceptable. For example, "The contract "is invalid" due to missing signatures".

What's the difference between "is invalid" and "is not valid"?

The phrases "is invalid" and "is not valid" are largely interchangeable. "Is invalid" is slightly more concise, but both convey the same meaning of something lacking validity.

What can I say instead of "is invalid"?

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

When is it appropriate to use "is invalid"?

It's appropriate to use "is invalid" in formal contexts, such as legal documents, academic papers, or technical discussions, where precision and clarity are essential.