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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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less efficient

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "less efficient" is correct and can be used in written English.
You can use it when describing a situation or process that is not as efficient, or effective, as it once was. For example: "This machine used to be very efficient, but its performance has decreased and it is now less efficient than it used to be."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

We were less efficient.

They are slightly less efficient than derailleurs.

This makes the state less efficient.

News & Media

The Economist

But it is also less efficient.

News & Media

The Economist

This makes the labor market less efficient.

News & Media

The New Yorker

In particular, the market became less efficient.

News & Media

The Economist

Batteries are much less efficient.

News & Media

The Guardian

Otherwise, we're just less efficient".

News & Media

The Guardian

Less efficient was West Brom's defending.

Vertical motion is far less efficient.

Moscow might be less efficient than Beijing.

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Expert writing Tips

Best practice

When comparing two systems, clearly specify the metrics being used to measure efficiency to avoid ambiguity. For example, specify whether you are discussing cost efficiency, time efficiency, or energy efficiency.

Common error

Be specific about what makes something "less efficient". Instead of simply stating "the new process is less efficient", explain which aspect of the process has become less efficient, such as time, cost, or resource utilization.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "less efficient" functions as a comparative adjective phrase. It modifies a noun, indicating that something possesses a lower degree of efficiency than something else or than its previous state. Ludwig's examples show this in various contexts.

Expression frequency: Very common

Frequent in

News & Media

55%

Science

25%

Encyclopedias

5%

Less common in

Wiki

5%

Formal & Business

3%

Reference

2%

Ludwig's WRAP-UP

The phrase "less efficient" is a versatile comparative adjective phrase used to indicate a reduction in effectiveness, productivity, or economy. Ludwig AI confirms its grammatical correctness and prevalence across various contexts, from news and media to scientific and encyclopedic sources. When using "less efficient", it's crucial to specify the aspects of efficiency being compared and avoid overgeneralizations to ensure clarity. Alternatives such as "not as efficient", "suboptimal", and "less productive" can provide nuanced ways to express reduced efficiency. Overall, understanding the grammatical function, communicative purpose, and common errors associated with "less efficient" allows for precise and effective communication.

FAQs

How can I use "less efficient" in a sentence?

Use "less efficient" to describe something that performs with reduced effectiveness compared to a previous state or an alternative. For example: "The old engine was reliable, but the new model is "less efficient" in terms of fuel consumption."

What are some alternatives to saying "less efficient"?

Depending on the context, consider using alternatives like "suboptimal", "less productive", or "not as efficient".

Is it grammatically correct to say "less efficient"?

Yes, "less efficient" is grammatically correct. "Less" is used to compare non-countable nouns and adjectives, and "efficient" is an adjective that can be modified by "less".

What's the difference between "less efficient" and "inefficient"?

"Less efficient" indicates a comparative reduction in efficiency, while "inefficient" describes something that is inherently not efficient. Something that is "less efficient" was perhaps more efficient at some point. "Inefficient" systems usually are a bad design since their conception.

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Source & Trust

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Authority and reliability

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Real-world application tested

Most frequent sentences: