not effective

USAGE SUMMARY

The expression "not effective" is correct and usable in written English.
You can use this expression to describe something that does not produce the desired outcome or effect. For example, "The new advertising campaign was not effective in increasing sales."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

56 human-written examples

"DDT was not effective".

The New York Times

They were not effective".

The New York Times

"They're not effective solutions.

The New York Times

It was not effective.

The New Yorker

Anthony was not effective in overtime.

The New York Times - Sports

"You're not effective if you alienate people".

The New York Times

Her campaign was just not effective.

The New York Times

This top-down approach is not effective.

The New York Times

It just makes them not effective.

The New York Times

Bowdlerized versons of tales are not effective.

The New Yorker

Antibiotics are not effective against the flu.

The Guardian

Expert writing Tips

Best practice

When describing the failure of a strategy or treatment, use "not effective" to clearly communicate its lack of success. For instance, "The new policy was "not effective" in reducing crime rates."

Common error

While grammatically sound, overuse of "not effective" in casual conversations can sound overly formal or critical. In less formal settings, consider using simpler alternatives such as "didn't work" or "wasn't helpful" to maintain a more relaxed tone.

Linguistic Context

The primary grammatical function of "not effective" is to act as an adjective phrase modifying a noun. It describes something that fails to produce the desired or intended result. Ludwig examples demonstrate its use across various contexts to indicate a lack of efficacy.

Expression frequency: Very common

Frequent in

News & Media

42%

Science

30%

Formal & Business

10%

Less common in

Wiki

2%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "not effective" is a common and grammatically correct way to express that something is failing to produce the desired outcome. As Ludwig AI confirms, it's widely used across various contexts, especially in news, science, and formal business settings. While alternatives like "ineffective" exist, "not effective" provides a direct and clear way to communicate a lack of efficacy. When writing, consider the formality of your audience; in informal settings, simpler phrases might be more appropriate. In essence, "not effective" is a versatile phrase that serves to convey inefficacy across a range of communication styles.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

ineffective

Single-word adjective directly conveys the lack of effectiveness.

does not work

Simple and direct way to express the failure of something to achieve its purpose.

unsuccessful

Highlights the failure to achieve a desired result.

unproductive

Focuses on the lack of output or results.

fruitless

Implies wasted effort; no positive outcome achieved.

fails to deliver

Emphasizes the failure to meet expectations or promised outcomes.

to no avail

An idiomatic phrase indicating that efforts were unsuccessful.

deficient

Implies a lack of necessary qualities or elements to be effective.

in vain

Similar to 'to no avail', indicating wasted effort with no result.

powerless

Highlights the lack of ability to produce a desired effect or change.

FAQs

How can I use "not effective" in a sentence?

You can use "not effective" to describe something that doesn't produce the desired result. For instance, "The marketing campaign was "not effective" in boosting sales."

What are some alternatives to saying "not effective"?

Alternatives include "ineffective", "unsuccessful", or "did not work", depending on the context.

Is it better to say "not effective" or "ineffective"?

Both "not effective" and "ineffective" are correct, but "not effective" might be preferred when you want to emphasize the lack of effectiveness as a direct observation or conclusion.

When should I use "not effective" in formal writing?

Use "not effective" in formal writing when you need to clearly and directly state that a particular method, strategy, or treatment failed to produce the intended outcome. For example, in a scientific report or a business analysis.