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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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erratic

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "erratic" is correct and usable in written English.
It can be used to describe something that is unpredictable, inconsistent, or irregular in behavior or performance. Example: "The weather has been quite erratic lately, with sudden changes from sunny to stormy conditions."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Valencia have been erratic of late but mostly the results have held, at least at home.

That roughly paints a picture of history – Kilmarnock as the more prominent and successful club – but Kenny Shiels's men must be wary of complacency, their erratic form aside. Ayr have won the past four League Cup meetings between the teams and have bundled three SPL sides – Inverness, Hearts and St Mirren – out of this season's competition.

His turbulent playing career was marred by clashes with authority, his erratic behaviour and candour quickly marking him out as a 'bad boy'.

Related: Premier League fans' verdicts part 2: Manchester United to West Ham Falcao's decline has been so difficult on the eye that he is now attracting the one thing no footballer ever wants – pity – and there are people at Old Trafford who have started talking about his inadequacies in a way that reminds me of how Alvy Singer, Woody Allen's character, used to excuse Annie Hall's erratic parking.

The DfE is said to fear that erratic marking could damage the credibility of the exams.

News & Media

The Guardian

The electricity supply is erratic, so businesses and individuals spend fortunes on generators and diesel.

All those people getting cheap laughs on social media out of Kennedy's last erratic performance on the BBC's Question Time, or rejoicing in his defeat on election night, were just a visible example of a culture which not only stigmatises people with mental health problems but treats public figures – politicians or otherwise – as if they were somehow less than human.

He does, though, have a reputation for irate and erratic behaviour.

News & Media

The Guardian

The risks are that either they don't work, resulting in uncontrolled diabetes, or they may work well, but in an erratic way, causing low blood sugar levels, especially when taken with conventional sugar-lowering drugs such as insulin.

Testimony by prosecution witnesses last week suggested Kaarma was on edge at the time and exhibited erratic behavior due to recent burglaries of his and other Missoula homes.

News & Media

The Guardian

It will, though, take something for this pitch to change character sufficiently for there has been no pace in it, little evidence of erratic bounce that might have eventuated from any indentations from the first day, no swing and hardly any turn to speak of.

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Expert writing Tips

Best practice

When describing behavior, use "erratic" to convey unpredictability and a lack of consistency. For example, "His driving was erratic, swerving across lanes."

Common error

Avoid using "erratic" as a general synonym for "poor" or "bad". "Erratic" specifically implies unpredictability or inconsistency, not necessarily low quality. Use it only when this specific meaning is intended. A more precise adjective might be more fitting.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The primary grammatical function of "erratic" is as an adjective. It modifies nouns to describe something unpredictable, inconsistent, or irregular. Ludwig examples showcase its use in describing scores, form, behavior, and electricity supply.

Expression frequency: Very common

Frequent in

News & Media

75%

Science

15%

Formal & Business

5%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The adjective "erratic" is used to describe something unpredictable or inconsistent, primarily functioning as a descriptor in various contexts. Ludwig AI confirms its correct usage in English. While applicable across diverse domains, it is most frequently observed in news and media. Related terms include "unpredictable", "inconsistent", and "irregular", each conveying a slightly different nuance. Remember to use "erratic" when specifically highlighting a lack of predictability, and avoid substituting it for a generic term like "bad". Overall, "erratic" is a versatile and commonly used term for expressing instability and unpredictability.

FAQs

How can I use "erratic" in a sentence?

You can use "erratic" to describe something that is unpredictable or inconsistent. For example, "The stock market has been erratic recently", or "His behavior was erratic and difficult to understand".

What words can I use instead of "erratic"?

Depending on the context, you can use alternatives such as "unpredictable", "inconsistent", or "irregular".

Is it correct to say "erratic behavior"?

Yes, "erratic behavior" is a common and grammatically correct phrase. It describes behavior that is unpredictable, inconsistent, or unusual.

What is the difference between "erratic" and "random"?

"Erratic" implies unpredictability and inconsistency, while "random" suggests a lack of pattern or purpose. Something "erratic" might have underlying causes that are difficult to discern, whereas something "random" is purely by chance. You can find more about "random" through our Ludwig's examples.

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Most frequent sentences: