unfeasible

USAGE SUMMARY

The word "unfeasible" is correct and usable in written English.
It is used to describe an idea or plan that is impossible to achieve or impractical. Example: Building an underwater city is unfeasible due to the high cost and engineering challenges.

✓ Grammatically correct

News & Media

Encyclopedias

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Since 2009, donor centres screening for the CCR5 mutation have emerged around Europe, but as well as providing no guarantees of destroying the virus, such transplants are unfeasible on a large scale.

The Guardian

Security sources and analysts dismissed such an idea as unfeasible.

The Guardian

The planned privatisation of €50 billion-worth of firms and land also looks set to fall short, partly because the forecast prices are over-optimistic and partly because organising a sale every ten days or so is unfeasible.

The Economist

This would take two years to build and, according to both Palestinian economists and senior Israeli army officials, the cost would make the project unfeasible.

The Economist

Yet on that basis, almost 75% of pensioners would already be entitled to the credit by 2025, according to the Institute for Fiscal Studies.The government's projection is unfeasible because the number of pensioners will rise by 40% over the next 35 years.

The Economist

With an election of his own due in November, George Bush needs to show America's voters a cheerier image of his foreign policy than is available in Iraq.But the UN's plan now looks unfeasible.

The Economist

The mainframe monster made 10 billion logical decisions for them, allowing them to crunch numbers they knew were humanly unfeasible.

The Economist

Though possible in theory, the cost and effort of doing so makes this unfeasible in practice.

The Economist

But that is so unfeasible that it is more helpful to consider all possible outcomes, divide them into similar groups and calculate the probability of a given outcome landing in each of them.

The Economist

Outlawing the payment of ransoms seems unfeasible unless there is clear evidence (none exists so far) that some of the money is finding its way into terrorist hands.

The Economist

And I must be a pretty can-do fellow, since I have used neither "unfeasible" nor "infeasible" in the many thousands of e-mails stored in both my work and personal accounts.

The Economist

Expert writing Tips

Best practice

When using "unfeasible", consider the specific reason why something is not possible. Provide context to clarify whether it's due to cost, logistics, or other constraints.

Common error

Avoid using "unfeasible" when something is merely difficult or challenging. Reserve it for situations where success is genuinely impossible given current circumstances. Saying something is "difficult" might be more accurate and less absolute.

Linguistic Context

The adjective "unfeasible" functions to describe something as not capable of being done or achieved, often due to practical or logical reasons. As Ludwig AI points out, it indicates impossibility or impracticality. Ludwig's examples show its use in assessing the viability of plans and projects.

Expression frequency: Very common

Frequent in

News & Media

69%

Encyclopedias

7%

Science

5%

Less common in

Formal & Business

3%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, "unfeasible" is a grammatically sound adjective used to describe something as impossible or impractical. While "infeasible" is more common in modern usage, Ludwig AI confirms that "unfeasible" remains a valid choice. As the provided examples show, the term is frequently employed in news and media, and academic contexts to assess the viability of plans or actions. When using "unfeasible", it's crucial to provide context and clarify the reasons behind its impracticality. Alternatives such as "impracticable", "unrealistic", and "impossible" can be used depending on the specific nuance you aim to convey. By understanding its usage patterns and potential alternatives, you can effectively communicate the impracticality of an idea or plan.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

Impracticable

Focuses on the difficulty in putting something into practice.

Unworkable

Emphasizes that something cannot function or be implemented effectively.

Unrealistic

Highlights a lack of grounding in reality or likelihood.

Impossible

Indicates a complete inability to occur or be achieved.

Not viable

Suggests the option is unsustainable or unlikely to succeed.

Unachievable

Highlights the inability to reach a desired outcome.

Unattainable

Emphasizes the difficulty in reaching or acquiring something.

Out of the question

Implies something is not to be considered or allowed.

Beyond reach

Indicates something is not accessible or obtainable.

Inexecutable

Focuses on the inability to carry out a plan or order.

FAQs

How to use "unfeasible" in a sentence?

Use "unfeasible" to describe plans or ideas that are not practical or possible to achieve. For example, "Building a colony on Mars is currently "unfeasible" due to technological limitations".

What can I say instead of "unfeasible"?

You can use alternatives like "impracticable", "unrealistic", or "impossible" depending on the context.

Which is correct, "unfeasible" or "infeasible"?

Both "unfeasible" and "infeasible" are valid, but "infeasible" is more commonly used in modern English. However, according to Ludwig, "unfeasible" is correct and usable.

What's the difference between "unfeasible" and "impractical"?

"Unfeasible" suggests something is not capable of being done, while "impractical" implies something may be possible but is not sensible or efficient. Thus, something "impractical" might be theoretically doable but not worth the effort, whereas something "unfeasible" simply cannot be accomplished.