less effective than

USAGE SUMMARY

"less effective than" is an acceptable phrase in written English.
You can use it when you wish to compare the effectiveness of two things, such as: "The traditional approach to teaching math was less effective than the new method."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"Giroud anonymous, Ramsey less effective than that.

Independent

Itraconazole is somewhat less effective than terbinafine.

The New York Times - Health

This is less effective than bright light.

The New York Times - Health

It was even less effective than Cleveland's.

The New York Times

They are far less effective than surgery.

Seminars in Colon and Rectal Surgery

But it is less effective than the other drugs.

The New York Times - Health

You'll be no less effective than the major parties.

The Guardian - Opinion

Whipping is already much less effective than it was.

The Guardian

In truth, my Cameron is less effective than my Johnson.

The Guardian

Some social sanctions are less effective than others.

The New York Times

A: Less effective than what many people might expect, and certainly less effective than rebels had hoped.

The New York Times

Expert writing Tips

Best practice

When comparing the effectiveness of two or more strategies or interventions, clearly state the criteria you are using to measure effectiveness. For example, clarify whether effectiveness is measured by speed, cost, or impact.

Common error

Avoid making overly broad claims about one method being "less effective than" another without specifying the context or conditions. For instance, saying "online advertising is less effective than print advertising" requires qualification, as effectiveness varies by target audience and campaign goals.

Linguistic Context

The phrase "less effective than" functions as a comparative adjective phrase. It indicates that one thing possesses a lower degree of effectiveness compared to another. As Ludwig AI explains, the phrase is grammatically sound and widely used. The examples confirm its role in comparisons across various domains.

Expression frequency: Very common

Frequent in

News & Media

43%

Science

35%

Academia

15%

Less common in

Wiki

3%

Formal & Business

3%

Reference

1%

Ludwig's WRAP-UP

In summary, "less effective than" is a grammatically correct and very common comparative phrase used to indicate that one thing is weaker or less successful compared to another. Ludwig AI confirms its validity, and the phrase is found across diverse sources like news, scientific journals, and academic papers. When using this phrase, it's crucial to define the criteria for measuring effectiveness and avoid overgeneralizations. Alternatives such as "not as effective as" or "inferior to" can also be used, depending on the context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

not as effective as

Uses a different comparative structure to express lower effectiveness.

less efficacious than

Uses a more formal synonym for 'effective', referring to the ability to produce a desired result.

less potent than

Replaces 'effective' with 'potent', indicating strength or power.

not as powerful as

Substitutes 'effective' with 'powerful', suggesting force or impact.

inferior to

Uses a more direct term to indicate a lower level of quality or efficacy.

weaker than

Employs a simpler term to denote a reduced level of effect or strength.

not as successful as

Focuses on the outcome or success rate rather than direct effectiveness.

less successful than

Mirrors 'not as successful as' with a slight difference in wording.

second to

Implies a ranking where one item is less effective because it is in second place.

falls short of

Indicates that something does not reach the level of effectiveness of something else.

FAQs

How can I use "less effective than" in a sentence?

Use "less effective than" to compare the relative effectiveness of two or more things. For instance, "This method is "less effective than" the alternative because it takes more time and resources."

What are some alternatives to "less effective than"?

You can use phrases such as "not as effective as", "inferior to", or "less potent than" depending on the specific context.

Is it grammatically correct to say "less effective than"?

Yes, "less effective than" is grammatically correct. It follows the standard comparative structure in English, where 'less' modifies the adjective 'effective' to indicate a lower degree of effectiveness in comparison to something else.

Which is correct, "less effective than" or "not effective as"?

"Less effective than" is the more common and grammatically sound construction. "Not effective as" is less idiomatic. Use "not as effective as" instead.