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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
not feasible
Grammar usage guide and real-world examplesUSAGE SUMMARY
"not feasible" is a correct and usable part of a sentence in written English.
You can use it to describe something that cannot be done or accomplished. For example, "Building a time machine is not feasible."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
impractical
unrealistic
impossible
not viable
unworkable
unachievable
out of the question
inconceivable
beyond the realm of possibility
not realistic
not achievable
not implementable
not applicable
not workable
not possible
not suitable
not otherwise possible
not realistically viable
not a realistic option
unlikely to succeed
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
And it's not feasible".
News & Media
They're not feasible.
News & Media
That's simply not feasible.
News & Media
Not feasible, you say?
News & Media
It's just not feasible.
News & Media
Perhaps it is not feasible.
News & Media
Factually, that's just not feasible.
News & Media
The travelling was not feasible.
News & Media
He said: "It's not feasible.
News & Media
Its design is not feasible.
News & Media
More importantly, it's simply not feasible.
News & Media
Expert writing Tips
Best practice
Use "not feasible" to objectively assess whether a plan, idea, or method can be realistically carried out given existing constraints (resources, time, technology).
Common error
Avoid using "not feasible" when expressing personal opinions or preferences. It is more appropriate when based on objective criteria or evidence.
Source & Trust
85%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "not feasible" functions as an adjective phrase that modifies a noun or pronoun, indicating that something is not capable of being done or achieved. As Ludwig AI confirms, it's grammatically correct and widely used.
Frequent in
News & Media
39%
Science
34%
Academia
12%
Less common in
Wiki
5%
Formal & Business
5%
Reference
0%
Ludwig's WRAP-UP
The phrase "not feasible" is a common and grammatically correct way to express that something is impractical or impossible. As confirmed by Ludwig AI, it's widely used across various contexts, including News & Media, Science, and Academia. The expert rating of 4.6 reflects its high reliability and usefulness. When using this phrase, ensure it is based on objective criteria rather than personal opinions. Alternatives include "impractical", "unrealistic", and "impossible", each carrying slight differences in nuance. The extensive examples provided by Ludwig showcase the phrase's versatility and appropriateness in diverse scenarios.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
impractical
Emphasizes the lack of practicality in a situation.
unworkable
Focuses on the inability to function or operate effectively.
impossible
Highlights the complete lack of possibility.
unachievable
Stresses the inability to reach a desired outcome or goal.
out of the question
Indicates that something is not worth considering.
unrealistic
Focuses on the lack of realism or practicality.
inconceivable
Emphasizes the difficulty to imagine or believe.
not viable
Highlights the lack of sustainability or capacity to survive.
beyond the realm of possibility
Indicates that something is completely impossible or unrealistic.
not a practical option
Emphasizes the lack of realistic choice.
FAQs
How can I use "not feasible" in a sentence?
You can use "not feasible" to describe something that is impractical or impossible to achieve. For example: "Building a colony on Mars is currently "not feasible" with current technology".
What are some alternatives to saying "not feasible"?
You can use alternatives like "impractical", "unrealistic", or "impossible" depending on the context.
Is it correct to say "not feasible" or should I use another phrase?
"Not feasible" is a perfectly acceptable and commonly used phrase. Its appropriateness depends on the specific context and the nuance you want to convey. Other options include "not viable" or "unworkable".
What's the difference between "not feasible" and "not practical"?
While similar, "not feasible" suggests something is impossible to achieve due to constraints, while "not practical" implies something is possible but inefficient or undesirable. For example, a project might be technically feasible but "not practical" due to high costs.
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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
85%
Authority and reliability
4.6/5
Expert rating
Real-world application tested