she is insane

USAGE SUMMARY

The phrase "she is insane" is correct and usable in written English.
It can be used to describe someone's mental state or behavior, often in a colloquial or informal context. Example: "After hearing her wild theories, I couldn't help but think she is insane."

✓ Grammatically correct

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

13 human-written examples

"She is insane," she said.

The New York Times

She wonders if she is insane to be in such a rage.

The Guardian - Books

"It is not clear whether she is insane or if the actress is provoking the audience.

The New York Times

The majority of the book's plot is superbly simple: Paul is injured and trapped in Annie's house, and she is insane.

The Guardian - Books

In an e-mail, Mr. Pierce offered a more particular description: "Kristine has exquisite timing, infinite vocal, physical and emotional range, and also she is insane, which is very helpful in Chris's work".

The New York Times

And there is Mrs. Siezmagraff, owner of the house, who wonders why people keep asking her if she is insane, and her daughter Trudy, who talks incessantly and fast.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

47 human-written examples

She's insane.

The New Yorker

She's insane, she's murderous, and she's utterly implacable.

The Guardian - Books

The other thinks she's insane, because men are no good and will only hurt her.

The New York Times

Her daughters had "thought she was insane for working with us," Ms. Gins said.

The New York Times

"She's insane, and she's always making things up," he told Jinan Intermediate People's Court, after she gave the video evidence.

Independent

Expert writing Tips

Best practice

When using the phrase "she is insane", consider your audience and the context. While it's a common expression, it can be stigmatizing. Opt for more sensitive language if appropriate.

Common error

Avoid using "she is insane" in formal or professional writing. It's generally too informal and can sound insensitive. Instead, use phrases like "she exhibits signs of mental instability" or "she is behaving erratically".

Linguistic Context

The phrase "she is insane" functions as a predicative expression, where "she" is the subject, "is" is the copula, and "insane" is the adjective serving as the predicate. According to Ludwig AI, the phrase is grammatically correct and usable. Examples from Ludwig illustrate its use in various contexts.

Expression frequency: Common

Frequent in

News & Media

50%

Wiki

20%

Science

10%

Less common in

Formal & Business

5%

Academia

5%

Social Media

5%

Ludwig's WRAP-UP

The phrase "she is insane" is a common expression used to describe someone perceived as mentally unstable or behaving irrationally. According to Ludwig AI, the phrase is grammatically correct and usable, though often considered informal. While prevalent in News & Media and Wiki contexts, its use should be carefully considered, especially in formal settings, where more neutral and descriptive language is preferable. Alternatives such as "she is crazy" or "she has lost her mind" may be more appropriate depending on the context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

she is crazy

More informal and commonly used alternative.

she is mad

Slightly more archaic but still conveys a similar meaning.

she has lost her mind

Emphasizes a loss of reason or control.

she is deranged

A more clinical and severe term for mental instability.

she is unhinged

Suggests a loss of emotional or mental stability.

she is not in her right mind

A more polite way of suggesting someone is acting irrationally.

she is out of her mind

Similar to 'lost her mind', but slightly less severe.

she is mentally unstable

A more formal and clinical way to describe mental instability.

she is acting irrationally

Focuses on the behavior rather than the mental state.

she is off her rocker

An informal, idiomatic expression for being crazy.

FAQs

What can I say instead of "she is insane"?

You can use alternatives like "she is crazy", "she is mad", or "she has lost her mind" depending on the context and the level of formality required.

Is it appropriate to use the phrase "she is insane" in formal writing?

Generally, no. The phrase "she is insane" is considered informal and can be stigmatizing. In formal writing, it's better to use more neutral and descriptive language, such as "she exhibits signs of mental instability" or "she is behaving erratically".

What's the difference between "she is insane" and "she is mentally ill"?

"She is insane" is an informal and potentially offensive way to describe someone with mental health issues. "She is mentally ill" is a more clinical and respectful way to acknowledge that someone has a diagnosed or suspected mental health condition.

How to use "she is insane" in a sentence?

The phrase "she is insane" can be used to express the opinion that someone is not of sound mind or is acting irrationally. For example: "After her bizarre outburst, everyone thought "she is insane"."