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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
erratic
Grammar usage guide and real-world examplesUSAGE 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
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
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.
News & Media
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.
News & Media
His turbulent playing career was marred by clashes with authority, his erratic behaviour and candour quickly marking him out as a 'bad boy'.
News & Media
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.
News & Media
The DfE is said to fear that erratic marking could damage the credibility of the exams.
News & Media
The electricity supply is erratic, so businesses and individuals spend fortunes on generators and diesel.
News & Media
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.
News & Media
He does, though, have a reputation for irate and erratic behaviour.
News & Media
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.
News & Media
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
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.
News & Media
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.
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.
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.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
unpredictable
Focuses on the inability to foresee future behavior or outcomes.
inconsistent
Highlights a lack of uniformity or regularity.
irregular
Emphasizes a deviation from established patterns or norms.
capricious
Suggests impulsiveness and sudden changes of mood or behavior.
unstable
Indicates a lack of stability or firmness.
fickle
Implies a tendency to change one's mind easily.
changeable
Stresses the capacity for alteration or modification.
volatile
Highlights a proneness to sudden and violent changes.
sporadic
Suggests infrequent or scattered occurrences.
wayward
Implies a tendency to go against what is expected or required.
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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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested